This is good for gearing up sidebar characters. I gear a druid, paladin, warrior by swapping out warlocks.

Sometimes I run with the druid and my priest to heal for groups of friends. ToL druid is silly stupid with the instant casts, I use voice commander almost all the time for the druid and its just second nature now.

An all healer group seems slow to me, but those VERY old skool all priest Onyxia and UBRS videos do show that it could be fun.

All all shadow priest groups annoy me with the short range of mind flay, thats just too close for a caster for my play style.