Got enough shards to finally roster her, what do you guys think, is purple or yellow better?
Definitely yellow if you are using special tile spammers like R4G/Polaris/BRB etc. She will buff your tiles by 91*5 = 455 per turn.
Purple at one cover is too slow and pretty much useless.
If you’re tight on roster slots/HP, I’d hold on rostering her. A one cover Kitty won’t help much. If you have Nico covered, she’ll outshine Kitty until you get more shards/covers for Kitty
Kitty needs powers that aren’t her red. And if you get them at 5, they are much better than if they are at 4 or less.
Keep the shards imo.
Yellow is more useful at low covers. Purple is more useful at 4+ covers than yellow if also at low levels (once she is fully covered and champed, proc’ing her yellow is at least as important as overwriting specials).
Less than 4 covers in her purple is too slow.
I would start with yellow, but I agree with those telling you to keep the shards until you can get more covers at once.