1. Beast units like to be away from their team (unless it’s a beast emblem) as in order to change form they need to be a space away from allies, so Solo skills would be great on Selkie.
2. My luck has been very dry as I got to 4.75 on the Greil’s Devotion banner, so I decided to get a HS!Elise instead. Turns out i got her in 20 orbs and she’s +Spd/-Def, might go with a Fury+Desp build. Also i might go to Quadtown with a Brave Axe+Bold Fighter (+Atk/-Res) Greil.