User blog comment:Mich, Michele & Kuhla/Guide: Squad building - Raid Edition/@comment-212.38.86.252-20150814124245/@comment-3547897-20150814125612

Crit isn't too favored in RC4 and above since it can interrupt people who are farming materials so Reis can be moved out. Feeva will have a hard time since RC5 bosses have huge BC resistance which can hurt your team more than help so she has to go. Suitable replacements would be Elimo and Griel for now.

Griel is better only due to her ATK Down which can help survive bosses.