That new memory with 'evolved' Spade seems really good; it seems like an ideal fit for RG Rainbow Rose.
EDIT: Speak of the devil. First time I spend 20 FG instead of 1000 memory crystals on a FM gacha and I end up rolling Spade:
Even at level 10 it's great (+10% re-act, 25% overheal, +30% healing; level 50 adds another 5% re-act).