There couple of them!
-Those Up smash and the Luma.
-Freaking Air attacks, Why the air attacks are soo strong.
-Sometime I had trouble with this guy... Fire Hydrant...
-The DownB is very good. And UpB is totally ridiculous powerful compared to others UpB, Way to powerful.
-When in 100%, He become Very cheap. You can feel the Aura effect better but my gawds he can be 160% and in tree hits you got like 50% in merely of a second.
But the one I say: "Becoming S tier" are
. They all have good recovery Option (Diddy depends), They Hit very hard, They have powerful projectile(Diddy have bananas!), powerful air attacks and sometime are really, but really fast.