Restoration Manipulation

• Health
• Mana
• Health Regeneration
• Mana Regeneration
• Lifesteal
• Spell Lifesteal
• Restoration Manipulation
• Changelogs

“

▶️ Could go either way. — Oracle

”

Restoration manipulation refers to any form of amplification and reduction applied to healing, health restoration (which includes health regeneration, lifesteal, and spell lifesteal), mana replenish, and mana restoration (which includes mana regeneration).

Restoration Classification

Ability	Ability Interaction with Restoration Manipulation
	Heal Manipulation	Health Restoration Manipulation	Mana Restoration Manipulation	Mana Replenish Manipulation
Withering Mist	0	2	0	0
Spin Web	0		0	0
Divine Favor		1	0	0
Blueheart Floe	0	0		0
Pixie Dust	0	1		0
Frost Dragon	0		0	0
Nothl Boon		0	0	0
Shallow Grave		0	0	0
Frost Arrows	0		0	0
Outfight Them!	0		0	0
Dauntless	0	1	0	0
Heartstopper Aura	0	1	0	0
Ghost Shroud
Rapid Decay
Heart of Darkness	0	1	0	0
Guardian Angel		1 2	0	0
Rain of Destiny (Ally)		0	0	0
Rain of Destiny (Enemy)		0	0	0
Decrepify (Ally)		0	0	0
Rot	0		0	0
Poison Sting	0	1	0	0
Cold Attack			0	0
Holy Blessing		0	0	0
Pollinate	0		0	0
Kaya	0	0		0
Kaya and Sange	0			0
Meteor Hammer	0	0		0
Corrosion	0	2	0	0
Frost	0	2	0	0
Sange	0		0	0
Sange and Yasha	0		0	0
Freezing Aura			0	0
Soul Release			0	0
Yasha and Kaya	0	0		0
Heal Amplification Aura		0	0	0
Envenomed Weapon	0	1	0	0

¹ Only affect health regeneration, rather than health regen, lifesteal, and spell lifesteal.

¹ Also affects Buildings.

Stacking

Heal manipulation, health restoration manipulation, mana replenish manipulation, and mana restoration manipulation do not interfere with each other, as all affect different sources.

• Heal Manipulation sources are summed up and then applied to the healing source. Stacks additively.
  • Heal manipulation has a lower cap of -100%, which effectively results in complete heal negation.
  • There is no upper cap for heal manipulation.
    
    

• Health Restoration amplification sources and reduction sources are first caculated separately.
  • Health restoration amplification sources stack diminishingly with each other.
  • Health restoration reduction sources stack diminishingly with each other.
  • Total health restoration manipulation is a sum of the stacked amplifications and reductions.
  • Restoration manipulation has a lower cap of -100%, which effectively results in complete restoration negation.
  • Restoration manipulation has an upper cap of +100%, which effectively results in doubled restoration.
    
    

• Health Regen Manipulation amplification sources and reduction sources are first caculated separately.
  • Health restoration amplification sources stack diminishingly with each other.
  • Health restoration reduction sources stack addictively with each other.
  • Total health regen manipulation is a sum of the stacked amplifications and reductions.
  • Regen manipulation has a lower cap of -100%, which effectively results in complete regeneration negation.
  • Regen manipulation has no upper cap.
    
    

• Total Health Regen Manipulation usually stacks addictively with Total Health Restoration.
  
  

• Mana Restoration Manipulation sources are summed up and then applied to the mana restoration source. Stacks additively.
  • There is no upper or lower cap for mana restoration manipulation.
    
    

• Mana Replenish Manipulation sources are summed up and then applied to the mana restoration source. Stacks additively.
  • There is no upper or lower cap for mana replenish manipulation.

Mathematic Definition

• Let A_n be a list of all amplifcations, and R_m of all reductions, both converted to decimals.

For Heal Manipulation:

Total Heal Manipulation = 1 + max ( ⁿsum_i (A_i) - ^msum_j (R_j , -1)

For Health Restoration Manipulation:

Health Restoration Amplifications = x = 1 - ⁿprod_i (1 - A_i)

Health Restoration Reductions = y = 1 - ^mprod_j (1 - R_j)

Total Health Restoration Manipulation = 1 + clamp (x - y, -1, 1)

For Mana Restoration Manipulation:

Total Mana Restoration Manipulation = 1 + ( ⁿsum_i (A_i) - ^msum_j (R_j )

For Mana Replenish Manipulation:

Total Mana Replenish Manipulation = 1 + ( ⁿsum_i (A_i) - ^msum_j (R_j )

Stacking Exceptions

• Restoration amplification of multiple instances of Sange-based items do not stack, the highest value takes priority.
• Restoration amplification of multiple instances of Orb of Frost-based items do not stack, the highest value takes priority.
• Mana regen amplification of multiple instances of Kaya-based items do not stack, the highest value takes priority.

Heal Manipulation

Heal manipulation affects every ability that heals a unit.
All sources of heal manipulation - whether incoming or outgoing - stack additively.
Total heal manipulation has a lower cap of -100%, but has no upper cap.

Incoming Healing Increase Sources

• Chen – Divine Favor
• Dazzle – Nothl Boon
• Dazzle – Shallow Grave
• Necrophos – Ghost Shroud
• Omniknight – Guardian Angel^2a
• Oracle – Rain of Destiny (Ally)
• Pugna – Decrepify (Ally)
• Hill Troll Priest – Heal Amplification Aura
Incoming Healing Decrease Sources
• Eye of Skadi – Cold Attack
• Necrophos – Ghost Shroud³
• Oracle – Rain of Destiny (Enemy)
• Shiva's Guard – Freezing Aura
• Spirit Vessel – Soul Release

Outgoing Healing Increase Sources

• Holy Locket – Holy Blessing

¹ Requires talent.

^2a Requires Aghanim's Scepter.

^2b Requires Aghanim's Shard.

Health Restoration Manipulation

Health restoration manipulation affects health regeneration, lifesteal, and spell lifesteal.
Health restoration manipulation stacks diminishingly, with amplifications and reductions calculated separately, and then additively added up for the final result.
Total health restoration manipulation has a lower cap of -100%, and an upper cap of +100%.

Health Restoration Increase Sources

• Legion Commander – Outfight Them!
• Necrophos – Ghost Shroud
• Kaya and Sange – Health Restoration Amp
• Sange – Health Restoration Amp
• Sange and Yasha – Health Restoration Amp
Health Restoration Decrease Sources
• Abaddon – Withering Mist
• Broodmother – Spin Web³
• Dragon Knight – Frost Dragon³
• Drow Ranger – Frost Arrows^2a
• Necrophos – Ghost Shroud³
• Pudge – Rot^2a
• Eye of Skadi – Cold Attack
• Jidi Pollen Bag – Pollinate
• Orb of Corrosion – Corrosion
• Orb of Frost – Frost
• Shiva's Guard – Freezing Aura
• Spirit Vessel – Soul Release

¹ Requires talent.

^2a Requires Aghanim's Scepter.

^2b Requires Aghanim's Shard.

Heal Manipulation and Health Restoration Manipulation

Reduces Heal Manipulation and Health Restoration at the same time

• Eye of Skadi – Cold Attack
• Necrophos – Ghost Shroud³
• Shiva's Guard – Freezing Aura
• Spirit Vessel – Soul Release

Health Regen Manipulation

Health Regen Manipulation is a deprecated mechanic that affects all Health regeneration of a unit.
Health Regen Reduction stacks diminishingly. Health Regen Amp stacks additively.
Amplifications and Reductions calculated separately, and then additively added up for the final result.
Total Health Regen Manipulation has a lower cap of -100%, and no upper cap.

• Total Health Regen Manipulation usually stacks addictively with Total Health Restoration.
  

Explicitly affects the health regeneration value of affected units. Despite being deprecated, the following abilities still use it.

Health Regen Increase Sources

• Chen – Divine Favor
• Dark Willow – Pixie Dust
• Mars – Dauntless
• Night Stalker – Heart of Darkness
• Omniknight – Guardian Angel^2a

Health Regen Decrease Sources

• Necrophos – Heartstopper Aura¹
• Venomancer – Poison Sting¹
• Vhoul Assassin – Envenomed Weapon

¹ Requires talent.

^2a Requires Aghanim's Scepter. Capped at 100%

Attribute Shift

Attribute Shift is considered hp regeneration.
Affected by Health Regen Manipulation and Health Restoration.
The lower cap is -100% but the higher cap is 0%.
The effectiveness of the reduction directly depends on the % of missing HP.
If Morphling's current health is 100%, the HP gain reduction will have no effect and vice versa.

Formula for calculating efficiency: 22 - (% total reduction from % missing HP) [?]
MAX HP always increases by 22. Under certain circumstances, for each reduced HP gain the % of current hp will decrease and because of this the next hp gain will decrease even more.

Health Freeze

Health Freeze causes all heal and health restoration effects to not tapply to the unit. The values area still registered and can still proc on-heal effects.

Health Freeze Sources

• Ancient Apparition - Ice Blast
  
  Duration: 10/11/12 ( 14/15/16)
  The debuff prevents the current health of affected units from increasing.
• Doom - Doom
  
  Duration: 12/14/16
  The debuff silences and prevents the current health of affected units from increasing.
• Oracle - False Promise
  
  Duration: 7/8.5/10 ( 8.5/10/11.5)
  Also negates all damage taken for the duration.

However, Health Freeze does not prevent abilities from setting a unit's health, or from granting direct health bonuses:

Health Freeze Ignoring Sources

• Lone Druid – True Form
• Lycan – Shapeshift
• Lycan – Wolf Bite
• Phoenix – Supernova
• Terrorblade – Sunder
• Undying – Decay
• Weaver – Time Lapse

Mana Restoration Manipulation

Mana restoration manipulation affects mana regeneration. All sources of mana restoration manipulation - whether incoming or outgoing - stack additively. Total mana restoration manipulation has a lower cap of -100%, and an upper cap of +100%.

Mana Regen Manipulation Sources

• Crystal Maiden – Blueheart Floe
• Meteor Hammer – Mana Regen Amp
• Kaya – Mana Regen Amp
• Kaya and Sange – Mana Regen Amp
• Necrophos – Ghost Shroud
• Necrophos – Ghost Shroud ³
• Yasha and Kaya – Mana Regen Amp

¹ Requires talent.

^2a Requires Aghanim's Scepter.

^2b Requires Aghanim's Shard.

Mana Replenish Manipulation

Mana replenish manipulation affects sources that replenish a unit's mana. All sources of mana replenish manipulation stack additively with each other.

Mana Replenish Manipulation Sources

• Necrophos – Ghost Shroud
• Necrophos – Ghost Shroud³

¹ Requires talent.

^2a Requires Aghanim's Scepter.

^2b Requires Aghanim's Shard.

Recent Changes

Main Article: Restoration manipulation/Changelogs

Version

Description

7.39
(2025-05-21)

• Lifesteal manipulation, spell lifesteal manipulation, and health regen manipulation are now summed up into one mechanic called health restoration manipulation.
  • Provides a percentage increase of decrease to health regen, lifesteal, and spell lifesteal.
  • Health restoration manipulation stacks diminishingly, with amplifications and reductions calculated separately, and then added up for the final result.
  • Health restoration manipulation is capped at -100% and +100%.
• Heal manipulation is independent from restoration manipulation, and still only affects what the game considers as a heal.
  • Health regen, lifesteal, and spell lifesteal are not considered healing.
  • Heal manipulation sources now all stack additively with each other, instead of diminishingly. [?]
  • Heal manipulation now has a lower cap of -100%. Has no upper cap.

7.27
(2020-06-28)

• Lifesteal manipulation no longer affects spell lifesteal.
  • ADDED spell lifesteal manipulation as a separate mechanic.
• Heal manipulation, health regen manipulation, lifesteal manipulation and spell lifesteal manipulation now stack diminishingly, instead of additively.

7.26a
(2020-04-21)

• Fixed heal manipulation affecting lifesteal as well. Now, only lifesteal manipulation does.
  • ADDED lifesteal manipulation as a separate mechanic.
• Fixed heal manipulation, health regen manipulation and lifesteal manipulation to not allow negative heal, health regeneration, and lifesteal values.
• Fixed mana restore manipulation and mana regen manipulation, to not allow negative mana restore and mana regeneration.