[Gimli]

Against them I like to first hit them with blinding flash to thin them out (yes they will recover eventually and come back, but you can take them out in smaller groups this way). For the ones that charge you, try things like insanity, sleep, paralyze/freeze flesh. Also a good time to bless/haste your party. Try to concentrate attacks on one at a time too. Also if you have acid bomb that is effective early, even the ones who flee from being blinded will keep taking some damage every round.