Trio'd in era with Anguish geared warrior and Time+ geared zerker and shaman.
Quick Stats:
450k HP
1,080 Max hit
98 avg dps on the tank, but its aoe required healing of everyone in group eventually for a total avg dps of 240.
Fight took almost exactly 5 minutes. Just keep ahead of the healing a little as the spin stun lasts for 7.5 seconds and is unresistable.