devtrackers.gg
Sure, but make sure to give him a big character model.
Playing against a good genji in overwatch always felt like ass because his hitbox is tiny and they'd always be in the air.
Agree with everything Drew said in the OP, but it's not just around buildings it feels bads. Out in an open field, if one player has to aim on an X/Y axis, and one player has to aim on the X/Y/Z then the dude who's double jumping always has the advantage. Think about fortnite shotguns. Tell me if you've ever seen the 'good' shotgunners stay on the ground while they're shooting.
You're just harder to hit at all points of the game if you have double jump.
So either give them a bigger hitbox as a drawback or just don't do it. Pathfinder already fills this niche to some degree, but his drawback is he's limited by his terrain.
TL;DR - it's harder to aim at someone up/down/left/right than it is to aim at someone left/right only. Pls no double jump champ.
Alternatively, add a cooldown to the double jump.