>>35396369Bisharp
Kind of embodies the first impression that he gives off. Dark and edgy commander that the pawns look up to with great regard.
Ferrothorn
More with the edge and spike theme, only this time it also brings in the multiple spiky whips similar to a lot of his attacks.
Huntail
Closest thing the Pokemon universe has to a pelican eel.
Goodra
The gooey nature of his mochi makes Goodra an obvious choice.
Xatu
I'm a bit on the fence whether I should go with Xatu or Absol here. Both of them are able to anticipate the future, but I decided to go with Xatu because Absol anticipates disasters specifically more than the future.
Mega-Glailie
Normal Glalie has it's mouth covered, but Mega-Glailie rips it open exposing it's gaping maw. Befitting of Katakuri who hides his mouth.