What should Blizzard give Ball to make him more effective?

The fact of the matter is, this fuckin hamster is weak 😭 Nearly every other tank has a one click +50% damage ability to any character with 250 hp or less. Orisa, Doomfist, Sigma, Rein, Roadhog, D. Va, and Junker Queen can hit for a ton of damage with so much less effort than Ball. To get their damage with Ball, you have to put all of your abilities on cooldown. It's actually insane how much effort you have to put in to get a single character to leas than half health, never mind full killing them.

What would you do to make Ball viable?

Me personally, seeing as ball is weak, I'd buff Piledrivers direct hit damage to 120 and make it so you can use it omnidirectionally and from the ground. Lets say you hit Piledriver from Ball mode while looking up. You would go firing 15 m/s straight to where youre cursor is aimed for 120 dmg. If you hit a wall, you'd still get the AOE effect on any enemies in range.