Alchemist/Changelogs

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Version History

Version

Description

7.40
(2025-12-15)

• Increased Acid Spray mana cost from 105/110/115/120 to 120 on each level.

• Talents:
   

  LVL 15

   

  +2 attack damage per Greevil's Greed stack reduced to +2.5. [?]

7.39
(2025-05-21)

• Greevil's Greed
  • Reduced Dividends gold per minute per Aghanim's Scepter Synth granted from 75 to 70.
• Corrosive Weaponry
  • Reduced max Stacks from 10/12/14/16 to 7/10/13/16.
  • Increased movement speed slow per stack from 1.5%/2%/2.5%/3% to 2%/2.5%/3%/3.5%.
  • Increased base attack damage reduction per stack from 1.5%/2%/2.5%/3% to 2%/2.5%/3%/3.5%.

7.38c
(2025-03-27)

• Unstable Concoction now grants 1 min Corrosive Weaponry stack per brewed second.
  • EXPR
    StackGain = ⌈ BrewTime * 1 ⌉

7.38b
(2025-03-05)

• Greevil's Greed
  • Aghanim's Scepter Synth no longer grants self 5% outgoing spell damage amplification per stack.

7.38
(2025-02-19)

• Greevil's Greed
  • ADDED
    new Dividends facet.
    • Grants an additional 75 per minute per Aghanim's Scepter Synth granted.
  • Aghanim's Scepter Synth
    • MOVED
      ability component from Chemical Rage to Greevil's Greed.
    • Increased cast range from 600 to Global.
    • Now prints a message upon granting the ability upgrade to an allied hero to all allies and spectators.
• Reduced Acid Spray radius from 400/475/550/625 to 350/400/450/500.
• Corrosive Weaponry
  • Other Alchemist's offensive-abilities now applies the following stacks upon application:
    • 1 stack per Acid Spray applied spell damage interval.
    • 1 stack per Unstable Concoction 1-second brew time.
  • Increased stack per attack from 1 to 2.
  • Increased max stacks from 4/6/8/10 to 10/12/14/16.
  • Reduced movement speed slow per stack from 4%/5%/6%/7% to 1.5%/2%/2.5%/3%.
  • Reduced base attack damage reduction per stack from 3%/4%/5%/6% to 1.5%/2%/2.5%/3%.
• Reduced Chemical Rage movement speed bonus from 30/45/60 to 20/30/40.

7.37e
(2024-11-19)

• Rescaled Acid Spray mana cost from 110 to 105/110/115/120.
• Unstable Concoction
  • Increased Mixologist cooldown reduction bonus from 30% to 35%.
  • Increased cooldown from 15 to 17.

7.37b
(2024-08-14)

• Increased Greevil's Greed buff duration from 36 to 40.
• Aghanim's Shard upgrade:
  • Increased Berserk Potion duration from 10 to 15.

7.37
(2024-07-31)

• All Greevil's Greed components are now disabled by Break sources.
• REWORKED
  ability interactions between Unstable Concoction with both Spell Block sources and Spell Reflection sources:
  • The projectile is now blocked and reflected on the primary target.
  • Secondary targets neither blocks nor reflects the projectile. This includes the following conditions:
    • Self-explosion.
    • Unstable Concoction Throw

7.36
(2024-05-22)

• Increased base attack speed from 100 to 110.
• Greevil's Greed
  • ADDED
    new Seed Money facet.
    • Grants 250 bonus starting gold.
• Corrosive Weaponry
  • OLD
    Applies 3%/4%/5%/6% status resistance reduction per stack.
  • NEW
    • Chemical Rage no longer increases the ability values by 1.5% while active.
    • Reduces 3%/4%/5%/6% base attack damage per stack.
• Chemical Rage
  • Increased health regeneration bonus from 50/80/110 to 60/90/120.
  • ADDED
    new Mixologist facet.
    • Grants the following abilities cooldown reduction bonus upon cast while active:
      • 30% Unstable Concoction cooldown reduction.
      • 50% Berserk Potion cooldown reduction.

7.35b
(2023-12-21)

• Increased Corrosive Weaponry movement speed slow per stack from 3%/4%/5%/6% to 4%/5%/6%/7%.

7.35
(2023-12-14)

• Reduced Acid Spray mana cost from 120 to 110.
• Increased Corrosive Weaponry debuff duration from 3.5 to 4.

7.34b
(2023-08-14)

• Increased base armor from -1 to 0.
• Increased Chemical Rage movement speed bonus from 20/40/60 to 30/45/60.

7.34
(2023-08-08)

• Corrosive Weaponry
  • Reduced max stacks from 5/7/9/11 to 4/6/8/10.
  • Chemical Rage now increases the ability values by 1.5% while active.
    • Increased movement speed slow per stack from 3%/4%/5%/6% to 4.5%/5.5%/6.5%/7.5%.
    • Increased status resistance reduction per stack from 3%/4%/5%/6% to 4.5%/5.5%/6.5%/7.5%.

7.33c
(2023-05-13)

• Reduced base movement speed from 300 to 295.
• Increased Unstable Concoction cooldown from 13 to 15.
• Greevil's Greed
  • Reduced base bonus gold from 3 to 2.
  • Reduced extra bonus gold per stack from 3 to 2.
• Reduced Chemical Rage movement speed bonus from 40/50/60 to 20/40/60.

• Talents:
   

  LVL 15

   

  +3 attack damage per Greevil's Greed stack reduced to +2. [?]

7.33b
(2023-04-25)

• Reduced base movement speed from 305 to 300.
• Acid Spray
  • Reduced radius from 475/525/575/625 to 400/475/550/625.
  • Reduced enemy armor reduction from 4/5/6/7 to 3/4/5/6.

7.33
(2023-04-20)

• Reduced base health from 200 to 120.
• Acid Spray
  • Reduced cast point from 0.2 to 0.1.
  • Increased damage per second from 20/25/30/35 to 25/30/35/40.
  • Reduced duration from 16 to 15.
  • Reduced mana cost from 130 to 120.
  • Reduced cooldown from 22 on each level to 22/21/20/19.
• Reduced Unstable Concoction max stun duration from 2.2/2.8/3.4/4 to 1.7/2.2/2.7/3.2.
• ADDED
  NEW
  Corrosive Weaponry passive ability.
  • This is now Alchemist's third ability.
  • Attacks now apply a 3.5-second 3%/4%/5%/6% movement speed slow and status resistance reduction stacking debuff.
  • Has a 5/7/9/11 max stack count. Successive debuffs refresh its duration.
  • Neither affects buildings nor Roshan.
• Greevil's Greed
  • MOVED
    to the fourth ability slot. This is now an innate ability.
  • Rescaled max bonus gold per kill from 15/18/21/24 to 18.
  • Rescaled Bounty Rune multiplier from 1.8/2.2/2.6/3 to 2.
• Increased Chemical Rage health regeneration bonus from 50/75/100 to 50/80/110.

• Talents:
   

  LVL 15

   

  +1.5 attack damage per Greevil's Greed stack increased to +3. [?]

7.32e
(2023-03-07)

• Increased Unstable Concoction max stun duration from 1.75/2.5/3.25/4 to 2.2/2.8/3.4/4.
• Aghanim's Scepter Synth
  • Increased attack damage bonus per granted scepter from 20 to 25.

7.32d
(2022-11-29)

• Reduced Acid Spray mana cost from 130/140/150/160 to 130 on each level.
• Increased Greevil's Greed Bounty Rune multiplier from 1.5/2/2.5/3 to 1.8/2.2/2.6/3.

• Talents:
   

  LVL 15

   

  +1 attack damage per Greevil's Greed stack increased to +1.5. [?]

7.32b
(2022-08-30)

• Reduced base strength and gain from 25 + 2.9 to 23 + 2.7.
• Reduced Unstable Concoction movement speed bonus from 5%/10%/15%/20% to 4%/8%/12%/16%.

7.32
(2022-08-24)

• Aghanim's Scepter Synth
  • Self-bonuses per granted scepter are now granted when granting the item to an ally.
  • No longer requires Alchemist to equip the item or self-cast for the bonuses to take effect.

• Talents:
   

  LVL 10

   

  +15 attack speed ➜ +1 Acid Spray armor reduction.

   

  LVL 15

   

  +20 attack damage ➜ +1 attack damage per Greevil's Greed stack. [?]

   

  LVL 20

   

  +350 health ➜  Acid Spray also grants armor to allies. [?]

   

  LVL 20

   

  30% cleave ➜ -0.1s Chemical Rage base attack time.

7.31d
(2022-06-08)

• Chemical Rage
  • Increased duration from 25 to 30.
  • Increased cooldown from 55 to 60.
• Aghanim's Shard upgrade:
  • Reduced Berserk Potion mana cost from 125 to 100.

7.31
(2022-02-23)

• Unstable Concoction
  • Now grants 5%/10%/15%/20% self movement speed bonus while brewing.
  • Now also damages and stuns non-hero units within the radius.

7.30e
(2021-10-28)

• Increased strength gain from 2.7 to 2.9.

7.30c
(2021-09-11)

• Increased base attack damage from 24‒33 to 27‒33.
• Reduced Chemical Rage mana cost from 50/100/150 to 50/75/100.

7.30
(2021-08-18)

• Increased base health regeneration from 0 to 0.25.
• Unstable Concoction
  • Rescaled mana cost from 90/100/110/120 to 100 on each level.
  • Reduced cooldown from 16 to 13.
• Aghanim's Shard upgrade:
  • Berserk Potion now also grants 30 movement speed bonus.

• Talents:
   

  LVL 10

   

  -6s Unstable Concoction cooldown ➜ +125 Unstable Concoction radius.

7.29
(2021-04-09)

• Reduced Greevil's Greed gold bonus cap from 18/21/24/27 to 15/18/21/24.
• U
  Aghanim's Scepter Synth
  • Also refunds Aghanim's Blessing - Roshan (5800 ) as unreliable gold while granting the Ability Upgrade buff.
  • The item's stats are granted to the ally as well. [?]

7.28b
(2021-01-10)

• Aghanim's Shard upgrade:
  • Reduced Berserk Potion cooldown from 45 to 35.

7.28a
(2020-12-22)

• Reduced Greevil's Greed stack duration from 40 to 36.

7.28
(2020-12-17)

• CHANGED
  Acid Spray ability operations.
  • Increased damage per second from 15/20/25/30 to 20/25/30/35.
  • CHANGED
    damage over time being applied by a debuff to aura-based.
  • Now the damage immediately stops upon leaving the radius. [?]
  • Now the damage over time starts ticking immediately upon cast within the radius. [?]
• Unstable Concoction
  • Reduced mana cost from 120 on each level to 90/100/110/120.
  • Reduced cooldown from 22/20/18/16 to 16 on each level.
• Reduced Greevil's Greed gold bonus cap from 18/22/26/30 to 18/21/24/27.
• Aghanim's Scepter Synth
  • Now fully refund the item as unreliable gold based on the item cost, removing the item, while granting the Ability Upgrade as an undispellable buff, if they already have either Aghanim's Scepter (4200 ) or Aghanim's Blessing (5800 ) in their inventory.
  • Now grants the item's stats to the ally as well. [?]
  • Reduced attack damage bonus per granted scepter from 30 to 20.
  • Reduced spell damage amplification bonus per granted scepter from 6% to 5%.
• ADDED
  Aghanim's Shard upgrade for Alchemist:
  • Grants Alchemist the Berserk Potion ability.

Berserk Potion

Throws a potion at an ally, applying a basic dispel and giving them attack speed and health regeneration for the duration.

Cast time: 0.2

Cast range: 800

Attack speed bonus: 50

Health regeneration bonus: 40

Duration: 10

Mana cost: 125

Cooldown: 45

Notes: The projectile travels at a speed of 900.

• Talents:
   

  LVL 20

   

  30% cleave reduced to 25%.

7.27b
(2020-07-15)

• Increased Unstable Concoction radius from 200 to 250.

• Talents:
   

  LVL 20

   

  +350 Unstable Concoction maximum damage increased to +400.

   

  LVL 25

   

  +40 Chemical Rage health regeneration bonus increased to +50.

7.26c
(2020-05-02)

• Talents:
   

  LVL 10

   

  -5.5s Unstable Concoction cooldown increased to -6s.

   

  LVL 10

   

  +20 attack speed reduced to +15.

   

  LVL 15

   

  +25 attack damage reduced to +20.

   

  LVL 15

   

  +325 health increased to +350.

   

  LVL 20

   

  +325 Unstable Concoction maximum damage increased to +350.

7.26b
(2020-04-28)

• Talents:
   

  LVL 10

   

  -7s Unstable Concoction cooldown reduced to -5.5s.

   

  LVL 10

   

  +25 attack speed reduced to +20.

   

  LVL 15

   

  +30 attack damage reduced to +25.

   

  LVL 15

   

  +400 health reduced to +325.

   

  LVL 20

   

  +400 Unstable Concoction maximum damage reduced to +325.

   

  LVL 20

   

  40% cleave reduced to 30%.

   

  LVL 25

   

  +50 Chemical Rage health regeneration bonus reduced to +40.

   

  LVL 25

   

  +60 Chemical Rage movement speed bonus reduced to +50.

7.26a
(2020-04-21)

• Greevil's Greed
  • Reduced base gold bonus from 4 to 3.
  • Reduced gold bonus cap from 20/24/28/32 to 18/22/26/30.
  • Reduced Bounty Rune gold multiplier from 2/2.5/3/3.5 to 1.5/2/2.5/3.

7.25
(2020-03-17)

• Increased agility gain from 1.2 to 1.5.

7.24
(2020-01-26)

• Increased strength gain from 2.4 to 2.7.

7.23
(2019-11-26)

• Talents:
   

  LVL 25

   

  +30 Chemical Rage health regeneration bonus increased to +50..

   

  LVL 25

   

  -0.15s Chemical Rage base attack time.

7.22g
(2019-09-06)

• Reduced Greevil's Greed extra bonus gold per stack from 4 to 3.
• Chemical Rage no longer grants 4/10/16 mana regeneration bonus.

• Talents:
   

  LVL 15

   

  +50 attack damage reduced to +30.

   

  LVL 25

   

  -0.2s Chemical Rage base attack time reduced to -0.15s.

7.22
(2019-05-24)

• Aghanim's Scepter Synth
  • No longer grants the item's stats to the target. [?]
  • Now passively grants 30 bonus attack damage and 6% spell damage amplification bonus for per granted scepter.

7.21c
(2019-03-02)

• Increased Acid Spray radius from 400/475/550/625 to 475/525/575/625.

7.21
(2019-01-29)

• Increased strength gain from 2.1 to 2.4.
• Increased base agility from 16 to 22.
• Increased base movement speed from 295 to 305.
• Reduced Chemical Rage base attack time from 1.3/1.15/1 to 1.2/1.1/1.

• Talents:
   

  LVL 10

   

  -8s Unstable Concoction cooldown reduced to -7s.

   

  LVL 20

   

  +400 Unstable Concoction minimum damage.

7.20d
(2018-11-30)

• Increased base movement speed from 290 to 295.

7.20
(2018-11-19)

• Reduced base health regeneration from 1.5 to 0.
• Reduced base mana regeneration from 0.9 to 0.
• Acid Spray no longer pierces spell immunity.
• Chemical Rage
  • Increased health regeneration bonus from 40/55/70 to 50/75/100.
  • Increased mana regeneration bonus from 3/7.5/12 to 4/10/16.

• Talents:
   

  LVL 20

   

  30% cleave increased to 40%. [?]

• Cleave
  • Increased cleave distance from 625 to 650.
  • Increased cleave end radius from 330 to 360.

7.19b
(2018-09-01)

• Reduced Greevil's Greed Bounty Rune gold multiplier from 3.5 on each level to 2/2.5/3/3.5.

7.18
(2018-06-25)

• Greevil's Greed
  • Rescaled gold bonus cap from 16/20/24/28 to 20/24/28/32.
  • Increased stack duration from 30 to 40.

7.17
(2018-06-10)

• Chemical Rage now applies a basic dispel upon cast.

7.16
(2018-05-27)

• Increased Greevil's Greed Bounty Rune gold multiplier from 3 to 3.5.

7.14
(2018-04-26)

• Increased Chemical Rage health regeneration from 40/48/56 to 40/55/70.
• Increased Greevil's Greed Bounty Rune gold multiplier from 2.5 to 3.

7.13b
(2018-04-13)

• Reduced base armor from 0 to -1.
• Reduced base movement speed from 295 to 290.

7.10
(2018-03-01)

• Talents:
   

  LVL 20

   

  25% cleave increased to 30%..

7.08
(2018-02-01)

• Reduced Chemical Rage base attack time from 1.4/1.2/1 to 1.3/1.15/1.

• Talents:
   

  LVL 10

   

  -5s Unstable Concoction cooldown increased to -8s.

   

  LVL 15

   

  +350 health bonus increased to +400.

   

  LVL 20

   

  +360 Unstable Concoction minimum damage increased to +400.

7.07d
(2017-12-19)

• Increased Unstable Concoction max damage from 150/220/290/360 to 160/240/320/400.

7.07c
(2017-11-17)

• Talents:
   

  LVL 10

   

  +5 armor ➜ -5s Unstable Concoction cooldown.

   

  LVL 15

   

  +250 health increased to +350..

   

  LVL 20

   

  +200 Unstable Concoction minimum damage increased to +360..

   

  LVL 25

   

  -8s Unstable Concoction cooldown.

7.07
(2017-10-31)

• Increased base health regeneration from 0 to 1.5.
• Increased base mana regeneration from 0.01 to 0.9.
• Reduced Chemical Rage health regeneration from 50/75/100 to 40/48/56.

• Talents:
   

  LVL 10

   

  +4 armor increased to +5.

   

  LVL 10

   

  +20 attack damage ➜ +25 attack speed.

   

  LVL 15

   

  +6 stats ➜ +50 attack damage.

   

  LVL 15

   

  +100 Unstable Concoction minimum damage ➜ +250 health.

   

  LVL 20

   

  +300 health ➜ +200 Unstable Concoction minimum damage.

   

  LVL 20

   

  +30 attack speed ➜ 25% cleave.

   

  LVL 25

   

  +5 Acid Spray armor reduction ➜ -8s Unstable Concoction cooldown.

   

  LVL 25

   

  30% lifesteal ➜ -0.2s Chemical Rage base attack time.

7.06e
(2017-07-02)

• Increased base agility from 11 to 16.
• Increased Greevil's Greed Bounty Rune gold multiplier from 2 to 2.5.

7.06d
(2017-06-11)

• Increased Chemical Rage movement speed bonus from 30/40/60 to 40/50/60.

• Talents:
   

  LVL 15

   

  +80 Unstable Concoction minimum damage increased to +100.

7.06
(2017-05-15)

• Increased strength gain from 1.8 to 2.1.
• Reduced base health regeneration from 0.25 to 0.
• Increased base mana from 50 to 75.
• Unstable Concoction
  • Increased radius from 175 to 200.
  • Increased cooldown from 16 on each level to 22/20/18/16.
• Greevil's Greed
  • Reduced base bonus gold from 6/8/10/12 to 4 on each level.
  • Increased extra bonus gold per stack from 3 to 4.
  • Rescaled gold bonus cap from 12/20/28/36 to 16/20/24/28.

7.05
(2017-04-09)

• Reduced Acid Spray radius from 625 on each level to 400/475/550/625.
• Increased Chemical Rage cooldown from 45 to 55.

7.02
(2017-02-08)

• Talents:
   

  LVL 15

   

  +15 movement speed ➜ +80 Unstable Concoction minimum damage.

   

  LVL 25

   

  +4 Acid Spray armor reduction increased to +5.

7.00
(2016-12-12)

• Reduced Greevil's Greed Bounty Rune gold multiplier from 3/4/5/6 to 2 on each level.

• ADDED
    Talents:

  +4 armor

   Level 10 

  +20 attack damage

  +6 stats

   Level 15 

  +15 movement speed

  +300 health

   Level 20 

  +30 attack speed

  +4 Acid Spray armor reduction

   Level 25 

  30% lifesteal

6.87c
(2016-05-07)

• Greevil's Greed no longer works for illusions.

6.87
(2016-04-25)

• Increased base health from 180 to 200.
• Increased base mana from 0 to 50.
• Increased attack range from 128 to 150.

6.86
(2015-12-16)

• Increased base health from 150 to 180.
• Greevil's Greed
  • Rescaled Bounty Rune gold multiplier from 5 on each level to 3/4/5/6.
  • Fixed gold earned by Greevil's Greed not being affected by the buyback gold earn penalty.

6.85
(2015-09-24)

• Increased Acid Spray damage per second from 12/16/20/24 to 15/20/25/30.
• Increased Greevil's Greed Bounty Rune gold multiplier from 4 to 5.

6.84
(2015-04-30)

• Unstable Concoction
  • Ability damage is no longer reduced by damage block.
  • Countdown can now be seen by enemies.
  • ADDED
    an radius target indicator.
• Greevil's Greed now has a Bounty Rune multiplier of 4.
• ADDED
  the Aghanim's Scepter Synth innate ability.
  • Aghanim's Scepter has an active ability when it is equipped by Alchemist.
  • Removes the item from his inventory upon casting on allied heroes while granting them the Ability Upgrade as a buff. Can only be cast once on each allied hero, including Alchemist.
  • The buff grants all of the items' stats and is undispellable.
  • Cannot be cast on illusions, clones and creep-heroes.

6.83
(2014-12-17)

• Greevil's Greed
  • Increased base bonus gold from 4/6/8/10 to 6/8/10/12.
  • Rescaled extra bonus gold per stack from 1/2/3/4 to 3 on each level.
  • Rescaled gold bonus cap from 30 on each level to 12/20/28/36.
  • Increased stack duration from 25 to 30.

6.82
(2014-09-25)

• Acid Spray
  • CHANGED
    damage type from Composite to Physical. [?]
  • Increased armor reduction from 3/4/5/6 to 4/5/6/7.
  • Reduced damage from 14/20/26/32 to 12/16/20/24.

6.80
(2014-01-29)

• Reduced night vision from 1400 to 800.
• Unstable Concoction
  • Reduced maximum brew time from 7 to 5.5. [?]
  • No longer continues to get stronger while it is in the air.

6.79
(2013-10-21)

• Chemical Rage
  • No longer grants 250/500/750 health bonus.
  • Increased health regeneration bonus from 15/30/60 to 50/75/100.

6.78c
(2013-07-03)

• Reduced Chemical Rage health bonus from 300/600/900 to 250/500/750.

6.76
(2012-10-25)

• Unstable Concoction now also explodes on self if Alchemist dies while charging it up. [?]
• Unstable Concoction Throw
  • Now grants a 400 radius flying vision while projectile is airborne and upon projectile impact.
  • Has a 3.34-second vision linger duration.
• Increased Greevil's Greed gold bonus cap from 26 to 30.

6.75
(2012-10-04)

• Acid Spray
  • Increased damage from 8/16/24/32 to 14/20/26/32.
  • Reduced mana cost from 160 on each level to 130/140/150/160.
• Unstable Concoction
  • Increased max damage from 130/200/270/340 to 150/220/290/360.
  • No longer displays the countdown numbers to enemies.
  • Now affects 175 radius around where it explodes (including when it explodes on self).
• Greevil's Greed
  • Increased base bonus gold from 2/4/6/8 to 4/6/8/10.
  • Rescaled extra bonus gold from 2 on each level to 1/2/3/4.
  • Increased stack duration from 20 to 25.
• Reduced Chemical Rage base attack time from 1.45/1.3/1.15 to 1.4/1.2/1.

6.74
(2012-03-15)

• Increased base armor from -1 to 0.
• Increased Unstable Concoction max damage from 120/180/240/300 to 130/200/270/340.

6.73
(2012-01-12)

• Increased Greevil's Greed gold bonus cap from 18 to 26.
• Reduced Chemical Rage base attack time from 1.45/1.35/1.2 to 1.45/1.3/1.15.

6.72d
(2011-07-22)

• CHANGED
  Alchemist hull type from DOTA_HULL_SIZE_HERO_SMALL to DOTA_HULL_SIZE_HERO. [?]
  • Increased collision size from 18 to 27.
  • Increased bound radius from 12 to 24.
• Fixed Greevil's Greed overhead Gold indicator not being displayed.

6.72c
(0000-01-01)

• CHANGED
  Alchemist hull type from DOTA_HULL_SIZE_HERO to DOTA_HULL_SIZE_HERO_SMALL.
  • Reduced collision size from 27 to 18.
  • Reduced bound radius from 24 to 12.

6.72
(0000-01-01)

• Updated Greevil's Greed ability tooltips.

6.71
(0000-01-01)

• Reduced base movement speed from 300 to 295.
• Chemical Rage
  • Reduced health bonus from 350/700/1050 to 300/600/900.
  • Fixed various abilities, including item abilities, malfunctioning during transformation abilities.

6.70
(2011-01-18)

• ADDED
  new Bound Radius mechanic. [?]
  • Alchemist has the DOTA_HULL_SIZE_HERO hull size. [?]
  • This unit has a 27-radius collision size and a 24-radius bound radius respectively.

6.69
(0000-01-01)

• Fixed Acid Spray ability effect radius.
• Unstable Concoction
  • Reduced stun duration from 2.5/3/3.5/4 to 1.75/2.5/3.25/4.
  • Fixed ability visual issues when projectile explodes while being airborne.

6.68
(0000-01-01)

• Unstable Concoction
  • Increased mana cost from 90 to 120.
  • Reduced damage from 150/200/250/300 to 120/180/240/300.

6.67
(0000-01-01)

• ADDED
  to Captain's Mode.

6.66b
(0000-01-01)

• Fixed ability interactions between Essence Shift with enemy transformation abilities (i.e. Chemical Rage).

6.66
(0000-01-01)

• Fixed ability interactions between Unstable Concoction and Last Word.

6.65
(0000-01-01)

• REWORKED
  Unstable Concoction.

OLD

Unstable Concoction

Alchemist starts channeling a concoction. Upon stopping the channeling, he launches a projectile which damages and stuns the target based on how long he channeled.

Max channel time: 2/3/4/5

Damage per channeled second: 60

Stun duration per channeled second: 1

Mana cost: 75

Cooldown: 16

Notes: Deals magical damage.

NEW

Unstable Concoction

Alchemist starts brewing a concoction. He can still freely move and act during this. The concoction will explode after 7 seconds. Alchemist can use the sub-ability to throw the concoction at an enemy hero. If he does not throw it, it blows up on himself.

Max channel time: 7

Damage: 150/200/250/300

Stun duration: 1/2/3/4

Mana cost: 90

Cooldown: 16

Notes: Deals physical spell damage. A number above Alchemist's head shows how much time he has left to throw it before it blows up on him. The number is visible to everyone. The projectile cannot be disjointed and continues to grow stronger while flying toward the target.

• ADDED
  the Unstable Concoction Throw sub-ability.
  • This sub-ability can be used to throw Unstable Concoction prematurely with reduced stun duration and damage.

6.60
(0000-01-01)

• ADDED
  -gg command.
  • This prints out a message displaying the total bonus gold received from Greevil's Greed.
• Unstable Concoction is now properly blocked by Spellblock.

6.59
(0000-01-01)

• Acid Spray no longer damages Undying Zombie.

6.58
(0000-01-01)

• Updated hero animations.

6.55
(0000-01-01)

• Fixed hero base strength having the wrong values.

6.54
(0000-01-01)

• Updated Acid Spray ability effects.

6.52
(0000-01-01)

• ADDED
  an allied only visual indicator to Unstable Concoction, showing for how long it is being channeled.
• Reduced Chemical Rage movement speed bonus from 60 on each level to 30/40/60.

6.50
(2008-02-06)

• Increased Acid Spray cast range from 625 to 900.
• Increased base intelligence and gain from 17 + 1 to 25 + 1.8.
• Chemical Rage
  • Increased health bonus from 200/400/600 to 350/700/1050.
  • Increased movement speed bonus from 0/5/10 to 60 on each level.
  • Increased duration from 20 to 25.

6.49
(0000-01-01)

• Updated hero description.
• Increased Acid Spray duration from 12 to 16.

6.47
(2007-08-24)

• Increased base movement speed from 290 to 300.
• Unstable Concoction no longer gets cancelled when Chemical Rage expires during the channeling.

6.45
(2007-06-27)

• Acid Spray
  • Increased radius from 550 to 625
  • Increased cast range from 550 to 625.
• Reduced Chemical Rage base attack time from 1.45/1.35/1.25 to 1.45/1.35/1.2.

6.44
(2007-06-03)

• Unstable Concoction
  • Increased cast range from 600/650/700/750 to 650/750/850/950.
  • Increased damage per channeled second from 50 to 60. [?]
• Increased Chemical Rage health regeneration bonus from 10/30/60 to 15/30/60.

6.43
(2007-03-19)

• Reduced base movement speed from 300 to 290.
• Reduced strength gain from 2.4 to 1.8.
• Reduced intelligence gain from 1.5 to 1.
• Reduced base armor from 1 to -1.
• Acid Spray
  • Increased mana cost from 120 to 160.
  • Reduced radius from 700 to 550.
  • Reduced cast range from 700 to 550.
• Unstable Concoction
  • Now provides 500 radius ground vision around the target, starting upon cast, lasting until the projectile reaches it.
  • Alchemist now faces the target while channeling.
• Greevil's Greed
  • Reduced gold bonus cap from 20 to 18.
  • Reduced stack duration from 20 to 18.
• Chemical Rage
  • Reduced health regeneration bonus from 15/30/60 to 10/30/60.
  • Now also grants 0/5/10 movement speed bonus.

6.40
(2007-01-13)

• Fixed ability interactions between Shallow Grave and Chemical Rage.

6.39
(2007-01-02)

• Increased base movement speed from 290 to 300.
• Unstable Concoction now deals 50 magical damage for each channeled second, capped by the maximum channel time at 100/150/200/250 damage.

6.38
(2006-10-27)

• Increased Chemical Rage health regeneration bonus from 10/25/40 to 15/30/60.

6.37
(2006-09-10)

• Reduced base strength and gain from 26 + 2.7 to 25 + 2.4.
• Reduced base agility and gain from 17 + 1.5 to 11 + 1.2.
• Reduced base movement speed from 300 to 290.
• Reduced base attack damage from 28‒37 to 24‒33.
• Reduced Acid Spray armor reduction from 4/5/6/7 to 3/4/5/6.
• Unstable Concoction
  • Increased cast range from 600 on each level to 600/650/700/750.
  • Reduced mana cost from 80/95/110/125 to 75 on each level.
  • Reduced cooldown from 20 to 16.
• Rescaled Greevil's Greed extra gold bonus from 1/2/3/4 to 2 on each level.
• Chemical Rage
  • Increased base attack time from 1.4/1.3/1.15 to 1.45/1.35/1.25.
  • Increased health regeneration bonus from 10/20/30 to 10/25/40.
  • Increased cooldown from 40 to 45.

6.36b
(2006-08-27)

• Reduced base attack damage from 32‒41 to 28‒37.
• Acid Spray
  • Reduced damage from 10/20/30/40 to 8/16/24/32.
  • Reduced armor reduction from 4/5/6/8 to 4/5/6/7.
  • Increased cooldown from 20 to 22.
• Reduced Greevil's Greed gold bonus cap from 36 to 20.
• Increased Chemical Rage base attack time from 1.45/1.2/0.95 to 1.4/1.3/1.15.

6.36
(2006-08-24)

• CREATED

Patch History

Patch

Description

08 Aug 2025

• Fixed Aghanim's Scepter Synth losing the bonus damage upon Alchemist dying.

05 Aug 2025

• Updated Alchemist's body color warp texture.
• Updated default flask model.

30 Aug 2023

• Increased versus scale from 0.8 to 0.93.
• Increased loadout scale from 0.82 to 0.93.
• ADDED
  new Adjectives attributes. [?]
  • Alchemist has the following values: Bearded 1, Potbelly 1, Steed 1, Legs 2 and Nose 1.

30 May 2023

• Fixed ability interactions between Unstable Concoction and Empower Spell.

23 May 2023

• Updated Acid Spray ability backend strings.

22 May 2023

• Updated Acid Spray ability backend strings.

11 May 2023

• Updated Acid Spray ability backend strings.

11 Nov 2022

• Updated Acid Spray ability backend strings.

09 Nov 2022

• Updated Berserk Potion ability descriptions.

08 Nov 2022

• UPDATE 2
  • Updated Unstable Concoction ability descriptions.

03 Nov 2022

• UPDATE 2
  • Added DOTA_UNIT_TARGET_SELF flag to Greevil's Greed.
  • Updated Berserk Potion ability descriptions.

14 Sep 2022

• Acid Spray
  • Updated ability modifiers.
  • Updated talent modifiers.

03 Sep 2022

• Updated Berserk Potion backend ability strings.

23 Aug 2022

• Updated Aghanim's Scepter Synth ability descriptions.

29 Jun 2022

• UPDATE 2
  • Updated the following ability tooltips:
    • Chemical Rage
    • Aghanim's Scepter Synth

24 Mar 2022

• Clones now correctly receive the bonuses of Aghanim's Scepter Synth.

14 Sep 2021

• Fixed base attack damage being wrongly changed to 28‒32, instead of 27‒33 in 7.30c.

24 Jun 2021

• Updated default hero model.

09 Apr 2021

• Updated default hero model.
• UPDATE 2
  • Updated default hero model.

21 Dec 2020

• Fixed Aghanim's Scepter Synth not refunding Aghanim's Scepter on allies when the item is in their stash or in their Courier.

17 Dec 2020

• Updated default hero model.
• Updated Chemical Rage particles.

19 Nov 2020

• Updated default hero model.

21 Apr 2020

• The ability to infuse Aghanim's Scepter into allies is now part of Greevil's Greed in Ability Draft, instead of being innate to Alchemist.

13 Aug 2018

• Fixed already launched Unstable Concoction projectiles not remembering their individual brew times and always using the most recent cast's brew time.

01 Feb 2018

• Fixed Chemical Rage not updating the base attack time to the current level or talent bonus upon refreshing the buff.

26 Jan 2017

• Added ability cast range indicator for Unstable Concoction.

21 Dec 2016

• UPDATE 2
  • Updated default item build.

26 Jul 2016

• Added Russian voiceover lines.

24 Mar 2016

• Added Arcane Rune responses.

16 Dec 2015

• UPDATE 5
  • Fixed Aghanim's Scepter Synth buff not being copied by the Tempest Double.

21 Oct 2015

• Fixed illusions' Greevil's Greed sometimes giving gold to Alchemist other than the one who owned the illusion.

16 Oct 2015

• Fixed Acid Spray visibility issues.

18 Jun 2015

• Fixed Acid Spray from blocking neutral creeps from spawning in their camps.

29 Apr 2015

• Aghanim's Scepter Synth
  • UPDATE 4 (TEST)
    • Fixed ability having global cast range.
    • Added ability sound effects.
  • UPDATE 5 (TEST)
    • Updated voice over lines for casting ability.
    • Fixed being able to cast ability on creep-heroes (i.e. Spirit Bear).
    • Aghanim's Scepter Synth buff now counts towards net worth of that hero.

28 Apr 2015

• UPDATE 2 (TEST)
  • Echo Shell now reflects Unstable Concoction, and the incoming stun duration.
  • Fixed Aghanim's Scepter Synth being able to be cast on Meepo clones.

19 Dec 2014

• Updated Acid Spray ability tooltip.

17 Dec 2014

• UPDATE 2
  • Added a buff icon for Greevil's Greed that shows you what the next bonus Gold will be if you kill a unit.

01 Oct 2014

• Fixed ability interactions between Unstable Concoction and spell immunity.

05 Feb 2014

• Updated Chemical Rage ability tooltip.

19 Oct 2013

• UPDATE 7 (TEST)
  • Fixed level 2 Chemical Rage providing 45 movement speed bonus instead of 40.

23 Sep 2013

• Fixed Chemical Rage form last hit sound effects.

03 Jul 2013

• Reduced Chemical Rage health bonus from 300/600/900 to 250/500/750.

20 Jun 2013

• Updated and minor revisions to some ability sound effects.

28 Feb 2013

• UPDATE 3 (TEST)
  • Fixed cast backswing behaviors for the following abilities:
    • Unstable Concoction
    • Chemical Rage

07 Feb 2013

• Fixed Unstable Concoction radius and self impact behavior when there is a spell immune target.

19 Dec 2012

• Unstable Concoction
  • Fixed charge time counting when it was released rather than impacted.
  • Fixed ability being disjointable.

25 Oct 2012

• Updated Unstable Concoction vision values.

02 Aug 2012

• Fixed Acid Spray armor reduction not affecting Siege Creep.

25 Jul 2012

• UPDATE 5 (TEST)
  • Fixed abilities with 0 cast point missing its ability effects:
    • Unstable Concoction
    • Chemical Rage

04 Jul 2012

• UPDATE 2 (TEST)
  • Fixed crash when showcasing Alchemist.
  • Fixed Acid Spray affecting Undying Zombie.

20 Jun 2012

• Added Haste Rune run, injured run, victory, spawn and teleport start/end animations.

14 Jun 2012

• Fixed Acid Spray killing Courier.

17 May 2012

• Fixed having 1 more armor than intended.

10 May 2012

• Fixed turn rate.
• Fixed night vision being too small.
• Unstable Concoction
  • Fixed self-explosion still stunning you if you are invulnerable.
  • Fixed damage being too low.

12 Apr 2012

• Fixed Unstable Concoction being castable on creep-heroes.

22 Mar 2012

• Fixed Acid Spray killing Courier.

08 Mar 2012

• Acid Spray
  • Updated performance.
  • Updated ability visual effects.

16 Feb 2012

• Fixed Greevil's Greed interaction with Aegis of the Immortal.

12 Jan 2012

• Fixed Unstable Concoction stunning himself when he is spell immune.

08 Dec 2011

• Unstable Concoction voice lines are now heard by other players nearby.

02 Dec 2011

• READDED
  Alchemist.

01 Dec 2011

• ADDED
  to Captain's Mode.
• Fixed various delays on his abilities.
• Fixed Greevil's Greed working on buildings.
• Chemical Rage
  • Fixed not changing his base mana regeneration.
  • Fixed Mirror Image illusions not carrying over the Chemical Rage buff.

17 Nov 2011

• ADDED
  Alchemist.