Lately most of my feathers have gone toward merges for Fir (+5) and Ares (+2) with +spd/-def Caeda being the exception to help my flying teams after getting F!Morgan, B!Ninian, and SF!Nino recently. But I only have one extra of each currently so with just over 20k feathers I was wondering if it might be a good idea to start working on Fae for a bit instead, I have a 4* +atk/-hp Fae. And out of the dragons in Heroes she's probably my favorite, although Binding Blade is my second favorite FE hence part of why Fir is my main merge project. At least I like her much more than Nowi, who I do have 5* with the SB/Aether set.
But at the same time I don't know where I should start when it comes to Fae, promoting a A!Tiki or Nowi to give her LB+ first or promoting her to 5* first and LB+ after that? I do have an extra B!Ike but I'll wait till I absolute have everything else set first before I even consider giving her SB potentially. And when my most used green units recently are SF!Nino and WT!Olwen a bulkier green seems like a more justifiable use of feathers than most other things.