T4 class cats help

4dlai

Hey ther i have a 4* sunspot at r4 and i have all the resources to r5 him but all i nees is two more mutant t4 cats can you tell me whats the fastest way to farm those?

TwmR

Glory store would be your best bet or aq Crystal's.
Also you don't have all the resources needed to r5 him if you need 2 more t4cc