We did Faydedar with one group.
Lineup was: 65Tank, 65Cleric, 65Necro, 65Illu (me), 61Wiz and 54Dru
I think, Cleric and Tank would suffice, the rest is only for the quicker kill. Fight lasted a minute at most, the longest of the kill was the way to the spot. *gg*
Faydedar dispells one buff after the other, front to end, so maybe it's good to keep some crap-buffs up front.