This guy is for Monk Epic 1.5 progression.
We did him today on Innoruuk, 3 groups with 2 clerics and a 9k HP twink tank as MT. Overkill, I'd say one or two groups with a mix out of VT / elemental gear can take him down.
He hits for max. 1550, is slowable, rampages. He also aggroes on sight. Drops 1/2 of Kaiaren's diary.