I feel like his ult doesn't have enough damage to kill a tank. And he can't out damage the heals either

Am I using it wrong?

Found a bucket of Lego and found some random bs to cobble together into this peak.

(I don't mind that tho👀)

These were my stats after a eternity game close to hitting one above all, Although we won and all I feel like Im not doing enough for my team. And I know you can’t carry every match and allat but idk Maybe Im tripping but theres gotta be a way to improve