Blind is pretty much a must because they can easily deal over 200 damage.
Rangers are always a good idea with their multiple traps (dust trap!).
Monks with Aegis and Protective spirit are VERY nice.
If you're doing "smite runs" send a warrior in first so he agros all the smiters then AoE them to death, if they get scattered in with your casters and stuff it gets messy.