Anemone cuz waifu. The fact she's maxed on HP/Def ampies and getting close with Attack means she'll always be helper squad, so why not buff her skill chance?

After she maxes, I'll probably go with Alpinia for same reason as others, and then perhaps Bride Oncidium due to her ability locking her into helper squad too. By the time I get to Bride Oncidium though... might have some other waifu to spend them on lol