meleebrawler
Smash Hero
Having the highest base mobility in the game is just such a massive fundamental advantage. Brawl Sonic exemplifies that you can make everything else about him hilariously weak and he still ends up mid tier at worst.Yeah, when thinking about how I would nerf Sonic, I draw a complete blank. I guess make Spindash less safe? That would probably help but seems like it only barely would.
He already kills quite late if he doesn't get an early edgeguard. I don't think nerfing his KO power would do anything to stop the issue people have with how campy his playstyle is. It might just encourage Sonic players to camp more until they get to those higher kill %s. Increasing his KO power, though, would only make him a stronger character and also do nothing to mitigate the camping issue.
His aerials are good and deserve more use than campy players give them. At the same time, though, they seem pretty fair? They're good combo tools, but I don't think Sonic having a solid combo game is much of an issue. Most characters do. And I don't think their hitboxes are anything egregious. As evidenced by Sparg0's Cloud and the recent rise of Corrin, swords are a decent answer to Sonic that we very may well see continue to get fleshed out.
So yeah, I'm at a loss for how one would mitigate Sonic's current strengths without an overhaul.
Since you can't really make Sonic not be the fastest character in the game without angering fans, the only other option is to shrink the gap between the fastest and the slowest.