Advice to raise Kitty
I have Kitty 120 (powers, 1 yellow, 2 purples, and 0 reds) with a bit more than 1000 shards. The yellow cover comes from Frost feeding. I can choose two covers with the shards, and I hesitate between raising her to 221, or 320, or anything else. My goal is to use Gritty + Polaris. R&G4, Polaris, Jug4, and Gamora4 are all championed.
I thank you in advance for any piece of advice.