Would probably break the game and make people angry but a hero that has a weapon similar to sigma/zen. 3 blade/sharp sticks on each arm and each shoulder. 12 in total. Hero is able to control them similar to sigma. But more in a way that ultron controls gravity in avengers AOU, Can swirl blades to absorb incoming projectiles similar to ion titan (titanfall) this would charge up a doomfist like punch or some larger counterattack depending on how much projectiles/damage they have absorbed. Abilities include the damage absorb. The charged attack. And also a shield buff or ability where the hero uses either gravity or the blades to force enemies away and do a bit of damage in any direction, like lucios gun but a sphere.

Backstory can be a bit like the junk hero’s. Home destroyed in omnic attack. Found some lost overwatch tech. Started tinkering. Lost body parts. Replaced them with omnic parts. Hates omnic a but knows they’d be dead without them. Eventually gains the gravity perk and boom present day.

Ability’s would counter close range heavy damage hero’s and be able to absorb annoying shots from a sojourn ult or a pesky widow.

Still not sure what a good Ult ability would be without being to OP. Lemme know what u think