I would rather see Mewtwo's Bair be buffed. A fast Bair would cover Mewtwo's blindspot behind him.
This brings me to my next point. Instead of nerfing characters, I would rather buff other characters to match the strength of the top tiers. It would make Smash 5 more balanced than Smash 4 in the long run.
YES, PLEASE.
Time to sound like a kid sitting on a mall Santa's lap during december
I want Kirby, Wario, Villager, Ness, Bowser Jr, and Dedede buffed.
If Kirby or Wario or Villager were top tier, hell even just solid top 15, I would drop every one of my mains aside from possibly Mewtwo, just to main them.
Dude all Kirby needs is Mario air speed, faster aerial frame data, and slightly bigger hitboxes and he's good to go, could use a more extensive combo game though..
All wario needs is better hitboxes and safer kill power like his fellow heavies.
All villager needs is a much faster (like frame 8 or less) grab, maybe a better combo game, and safer kill options, make dtilt and utilt safer on shield, make ftilt kill, or make jab lead into dtilt or utilt. Alternatively you could make fsmash like 5 frames or so faster but that would actually break him a little bit, you wouldn't be able to punish it out of shield.
I fixed them all