At first, my original Arena core was Caeda, Catria and Camilla, but I had to make changes after that season with Legendary Chrom. As of right now, my core is just Caeda, Itsuki and Virion. Caeda and Virion are only there because I’m waiting for Altena merges since she’s replacing Catria for blue and my plans for a green unit are up in the air right now.
My original goal was to +10 Flame Emperor, but two things put a damper in that: Legendary Edelgard and a lack of grails and feathers. My thinking was I would just save up for merges later down the road, but as of right now we don’t know what Brave Edelgard is going to be and she might be easier to merge up (note I can’t use the free pick as a merge because I need that when following f2p guides). But there are no guarantees she will be a green axe unit like her other versions. I know Ross and Echidna are things, but I don’t have enough manuals or feathers to do so, I can’t summon for a while and, I cannot stress this enough, I DON’T WANT TO. But I have a feeling everyone is going to tell me that I HAVE to merge up a Ross (as I have enough manuals for +9) even though I have no idea what kind of build to do. Honestly, I’d rather have an armored unit since I already have an infantry and a flier so Flame Emperor seems to be my only option at the moment.