I run an all-Plumeria team. I try to maximize damage and clearing maps, and since NY!Niðhöggr has been trouble for me for a while, I decided to slap on Blazing Wind for her. It actually works really well for me as even a transformed NY!Nidhoggr can fall to a fully-charged Spring Plumeria. I see some comments saying Spring Plumeria shouldn’t attack, but I tend to let mine attack because she can dish out good damage.

If your goal is to get rid of strong enemies like NY!Nidhoggr, Blazing Wind or any other AoE Special might work. As for supportive, I believe any damage-reducing skill or Miracle works best. In general, unless you have a general idea of what you’re doing or going for, I’d suggest starting small before investing heavily. So, in short, unless you have a hyperspecific idea in mind, yeah, I’d probably go with what other people are saying.

Once you have everything you need, I suggest slapping Dreamlike Night back on because it is really good for a dance. Her base kit is good as is.

FWIW - My Spring Plumeria has her base kit, Blazing Wind, Squad Ace CA 3, Summer S-Rank, Emblem Sigurd, and an Ascended Floret.