I think you should try KP out before you should come to the assumption that she is bad, Actually she is not. She is a niche 5* but very good at that niche. Put her with any strike tile creator and watch her buff everything in her path. plus, her purple explodes on every other turn,you need to read that out loud. Please look at her description again before you say she is bad. She is more mid tier to low upper tier at best. She also over-writes tiles, but not like gambit.
You’ve got the conversation backward. Nobody said KP was bad. The entire conversation is about how she makes Banner bad (or rather worse, since most would argue he’s already pretty bad). The second post went as far as to compare Kitty’s handling of special tiles to Gambit, which is extremely high praise, if anything.
Gambit was so OP that his overwrite power was like his 4th strongest thing. But for her it really sticks out how strong that power was. There should be a Kitty support group for all the characters she destroys. Banner, Hawkeye, Daredevil, who else? Gambit, OML, Phoenix, Goblin, Iron Man…
Something tells me they were probably thinking about how Kitty can help out with Banners Black and making him better than countering him.
think about this team OML, Banner, Kitty fire banners black and Kitty buffs OML strike tiles and Banners attack tiles and removes Banners enemy tiles. Then convert to Hulk and match people away