well yeah slapping devil on her might be useful for some groups, I haven't really looked at devil groups myself but whatever. as for 1.8X3 not being an option because it makes 4/2/2 groups obsolete, frankly I already do think they're kinda there for just about everything but lazy spam dungeons. For anything that you need to be serious for and place an effort, It doesn't seem like those are very viable unless you have like the absolute best possible collection of subs for a specific dungeon with no compromises at all.. That and I wasn't meaning 1.8 exactly. I don't think there's like no line at all between totally useless, and overpowered. There's got to be SOME number that makes their leader abilities useful, but not op.
But yeah, maybe the devil thing is enough for devil based groups.