As an uninkable 6-cost that removes something from the board, she reminds me of Lady Tremaine - Imperious Queen
It may take a bit of time and setup, but when sequenced correctly, you can end up with some very broken plays
Marcy: This does certainly have 'win-more' potential and issues, and also costs 5 mana, which means that in a format like Standard, that's a point of the game where you should probably just be winning, but if there were some way to get this down earlier or cheated out, could be good
The special ability on the card allows it to heal other characters for up to three points when played
Conception and design [edit] Lulu was designed by Tetsuya Nomura for Final Fantasy X
Again, these both cards may already have homes in Standard, but I think they do enough that they'll see play in some form or another during their Standard lifespan