Theme trainers are a category of trainers, each of which use a specific theme with their pokemon. Examples are Ursoc who uses bear pokemon, and Consuela, who uses "queen" pokemon.
A list of these trainers and their pokemon is a s follows:
A trainer who uses only bear pokemon:
Fearing for his spokemon to become cursed, Ursoc is a sworn enemy oof the Blight. If pancham would evolve, it would become dark type and become cursed. Therefore, Ursoc has given it an everstone. Panvham will be angry at Ursoc over this, feeling left behind from the other team, but in the end it will understand, and he and Ursoc will train in different ways of becoming stronger. Ursoc will become an ally of Vergil, and Vergil will learn a lot from him.