It is right there in the name. Simply create a team of pokemon based on your character. Bonus points if you manage to explain why each pokemon fits the particular character.

Zack's Team

Pangoro (Come on, dark and fighting)
Turtonator (Cuz you know, turtling.)
Hitmonlee (Footsies)
Blaziken (Fire and fighting, Zack's specialty)
Mimikyu (Just like Zack, decoys you and hits you hard)
Cloyster (Perfect mix of blocking and hard hitting attacks)