Nerf or buff?

If you could choose one class to buff and one class to Nerf what would it be?

For me I'd buff and Nerf the stunner and the Ninja

That one sheild plate stun guy could be fun but ninja has everything he has but better

Infact the top 3 players are ninjas not that ninja is overpowered infact it's just he has a high skill ceiling. Sheild should have that too in some way


Now it's your turn. Choose one hero and take a nerf to it the other a buff
I’d nerf the gunner as his grenade and damage out put is too high and buff the sniper. The sniper is too weak to be a sniper as he can barely get two hit kills
But my ninja can not be rank no.1.
All just player skill,know?
Noob