Originally Posted by Unregistered

Thanks for chiming in.

Yeah, I think the current step-up Gacha has a rainbow dressbloom available, but it's way too rich for my blood . I was lucky enough to get a 6* Maple from that special 10+1 deal and was just curious what could be done. I also managed to unlock all skills/slots for Fatsia through the current event, so I'm just weighing where the Ampys would best be served.

The chance that at some point you're going to replace Fatsia with another girl is much bigger than the chance that you're going to replace Maple. There are lots of girls simply better than Fatsia, not only rainbows, but also many gold ones obtained from gacha. You could make Fatsia a lot better with Ampies, but, you could make those other girls even better than that again with a similar dose of ampies. So unless you picked Fatsia as your waifu, on the long term you're probably better off spending those ampies on Maple.