Mind controlled Half mutated member

Finn is a half mutant with psychic powers one day the dragonoids found out Finn and kidnapped him from his homeworld the dragonoids also mind controlled him. Rai and other Tai Chi chasers which are tigeroids were fightin gthe dragonoids one days to fond a tai chi card inside their base. Sena,Tori,Donha and Hak had another member before Rai joined the Tai Chi Chasers who can it be.