I have five copies of Titania Staff (fuck you Titania, give other Hime some chance), and I'm not FLBing that damn thing. I don't even know why I am holding on to it.
If it doesn't have two of Assault/Defender/Exceed (or three) with FLB, then it's usually not worth it. Throw in Vigor into that list for some specific builds, I guess. Oh, and bonus points for Lances/Glaives/Bows/Hammers, for Phantom Grids. In any case, Titania Staff does none of these things.