lol I just took my 4 shaman + pally to crypts and he wiped the floor with me. Its do-able, I got him to 25% twice, but keyclone sometimes sends my toons on a straight line without stopping when I strafe them all and that is death.

After 3 wipes i just ran my entire group past him, and past the 2 monks after his room, and died in the little L hallway. One of the shamans anked up and could rez everyone without aggroing anything. Screw this boss!