I have dabbled in some Nasusverse Servant related stuff before, as seen with Patxi, but this one is taking an existing Servant and giving them a different class by altering their Saint Graph, which usually also results in an altered appearance by way of outfit, sometimes by the body as well. This is a concept I thought up for Edison, who is usually a Caster, if he were to take on the Saber class. And admittedly, I went on more of the American hero vibe rather than the electric themes of Caster Edison, though there are some design pieces here based on his Caster self's outfit.

Skill A, Creative Charisma B: Increases Attack(^) of all present allies for 3 turns(And fills NP gauge).

Skill B, Freedom Roar EX: Increases NP Gauge and applies Buster Up for 1 turn.

Skill C, Banner of Hope A: Applies target focus to self, grants party Defense Up and Healing Per Turn for 3 turns.

Noble Phantasm, Star Spangled Sword: Roar, O Blade that Brings Forth Freedom. A Buster NP that deals heavy damage to all targets(^), inflicts Skill Seal (and NP seal) for 1 turn.

And of course, he has a passive skill that flips the class advantage, so he's strong against Archers and weak to Lancers. All because of his rivalry with one certain Archer.

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Art is by  Sparksstars

This variant of Edison is a creation of mine, but the original design/character belongs to Type-Moon.