User blog comment:Mich, Michele & Kuhla/Future Units Preview/@comment-26545332-20150708174100/@comment-25209037-20150709014840

You only need the Lafdranya to activate the +20% stat in her ES, the cleansing part doesn't need it. And you're looking at her only on her own. But yeah, her need for a stat null sphere does hurt her a bit, but the same is true w/Elimo. Yes, it is true that at a glance, she is tad confusing, but what makes her hyped in JPBF is that she doesn't conflict w/any units.

You may not believe this, but dual mitigators is a thing in JPBF right now, and Edea synergizes well with Elimo, even when the UBB revamp was implemented. Basically, Elimo's easy to maintain SBB means you have constant DEF buff and Edea's STBB is an efficient boss killer w/stat cleansing as a bonus. Also, contents where you'll need to bring up Elimo's UBB means that you have 1 turn without using her for mitigation, so Edea also fills that role. This makes her very useable in both trials and EX dungeons

In terms of GGC, she's the mitigator of choice because she provides the three essential ailments: weakness that decreases DEF; injury that decreases damage, and when paired w/ATK down, you basically have no need for a mitigator at that turn; and sickness, where post revamp, increases damage dealt by element advantage.

Also, saying that her "her BB cost is actually higher ..." is a very poor excuse. There are many ways to accomplish BB management, even w'BC resistance fights. We already have Raaga, Rosetta, Deemo, Ruby that fills gauges when sparking and Edea's compressed animation is good for sparking, we have Matah effects in Oguro, Luka, Xie'jing, Medina, Kikuri, Yuura, Diana, which made these units great in trials in the first place, BB fill effects on Medina, Ivris and Aaron, BB fill/turn from Colt, Grah and Oguro. Not to mention, straight up BC buffs from Griel, Claire, and Feeva. I mean seriously, BB management has been simplified ever since Zelnite and Lily Matah was released.

Frontier Gate, Raids, Trials, GGC, EX Dungeons, she's the same as Elimo in that she fits very well in almost all squads for all contents.