I was 2 boxing LDoNs and I had a tank and healer merc my BL was shrouded to a lvl 55 wizard skelly and my 2nd box was a 55 RNG. Everything was going well and I was like 7 kills for another successfull adventure. Come across a_Steward_Intimidator that looked like many of the whirlwind mobs and I went in melee and nuke and snare and nuke etc.. this guy complete healed when he would get to about 20% health and he kept doing it.. and doing it.. and doing it.. when my toons were OOM I backed off and the merc tank still was pounding away and still the mob would CH. I began to think I would not have enough time to finish the adventure and so left the mob and tracked down other kills. The mob followed and continued to wail on the tank merc but the Damage shield the RNG cast on him was doing damage to the mob and it did not CH again nor did it CH the other mobs my group fought for the win. a Steward Intimidator finally beat himself up on the tanks DS and only had a gold dusted rune for loot.