User blog comment:Galeforce's Wrath/What units to raise?/@comment-26832517-20160404051528

Pretty much agree with Aicilespear. Charla and Elimo are 2 of the better units in the game at 7* still, even if they aren't the newest. Siruis and Sareas are brand new and have decent kits.

I might go with Carrol before Sirius and Sareas personally because Carrol's 7 star form has some really useful buffs like adding elements to your attack, BB fill when attacked, and boosting the OD gauge fill rate. Adding elements to your attack is useful in all early content and some late game content. Since she adds Water, Light, and Earth to all units' attacks with her SBB, you're guaranteed to never do weak damage against your opponents and you won't have to switch up your team often while questing.

Keep everything, though. If nothing else it gives you more units for CA, and almost every unit has a use somewhere.