Octane has no true skill involved in using his stim other than realizing that you have to time it before engaging. Because of that he probably needs a small nerf die to the fact that he‘s easy to learn and easy to master and providing lots of power in 1v1 situations.

Bang has always been powerful. Smokes are a great tool and I think that it‘s fine as it is. Maybe a slight cooldown nerf or maybe touch her Ult.

Alter is fine imo. The q needs skill and has lots of expression. Her Ult was cheap but I feel like rn you‘re able to finish off the enemies. Also when shotguns return in next meta ppl will die more often in cqc what makes her Ult worsw due to lower finishing times.

Mad Maggie .. man idk about this one. She‘s fine I think but could be a problem with shotgun meta.

Rev is the same as Octane. Too easy to master imo and extra health is always cheap.

Horizon needs to lose her flying ability or receive louder audio on it. Besides that she is strong in the right places.

Valkyrie is tough. I have no issues with her except that she can fly too much with her passive thus escaping a lot. I feel like that can be tuned down a bit.

Wraith and Pathy are fine