Dude 2

Demon Hunter who can transform up and back at will. Transforming will have a small cost I suppose, maybe a decent cooldown. HP and mana regen are negative while in demon form, but your stats are higher. Perhaps grants your abilities extra effects. Maybe screw the stat bonus. Also you might move more slowly in demon form or something. This would be kind of interesting.

Attack that summons a meteor with a short delay that does AoE damage and stuns. Perhaps only stuns in demon form. In an autoattack game, this is an on-next-hit ability. Otherwise, it will have a slightly larger range and the telegraphing animation will be pretty reactable. Might share an animation with another ability. As an example of making for interestingly different matchups, some characters would have dashes or short invulnerability moves or what have you to somewhat consistently negate this move, but others won't.

Charge attack that pushes enemies hit and does damage as long as you contact them. You will spawn some sort of unit if you kill an enemy with this. Charges more quickly in demon form and gives you damage mitigation during the charge. This push won't stop their other movement, so if you catch them with the edge and they react quickly and well, they can get away.

Passive that gives your basic attacks/autoattacks shockwaves that follow up a moment later. These will have more range in demon form. This is probably not worth doing in an autoattack game.

Move that prevents damage to you for a short time, charging you up. At the end of this, your next basic attack does bonus area damage based on how much damage you prevented. In a non-autoattack game, probably just applies on hit.