We'll, if you have about 100% damage and fox is running at you, a trade won't work because you'll die... Blocking it pushes fox back a lot which gives you maybe only one option to punish, which is the Oos Wavedash that's being discussed. If Wavedash Oos does not work (mind you, this also might depend on your characters wave dashing distance), then the only thing left to do is to out dash dance him, which can be hard if he plans to literally run until he is humping you before doing the up smash. Anyone mind simply testing it out and seeing if it works out and maybe post a gif of it or something?
As for this tierlist, Fox and falco should not be in there own tier anymore. Falco should probably not even be next to fox anymore. This is not melee guys. There are characters that can beat fox/falco (falco even more) in the matchup (Mewtwo and MK just being two of them).
I also noticed people underestimating Kurby. I think that the tournaments that just passed (including the latest one that chu dat Won with Kurby) might say something (even if it's a little bit) about kurby's tier spot . Kurby was swallowing errrrrrr body and spitting them out off stage. He is not broken but his sucking abilities aren't flaccid either. His head game allow for him to climb to the top after ruthlessly sucking the stocks out of each and every character that presented themselves.
http://www.youtube.com/watch?v=kW8z0B2ij50&list=UUj1J3QuIftjOq9iv_rr7Egw
Seriously though, can anyone explain what happened at 6:16?