On Mangler, he had MOTM 5.
He was surprisingly very easy -- I did Garudon that same night and he was much harder.
Slow landed after a Malos. I was able to land poison, magic, fire, and disease without much trouble (didn't have cold to try).
We did approximately 322K damage to him. He did 63k damage to me (900 AC, half time, half elemental geared, 11.1k hp, 13% shielding, 33/100 avoidance). He has low AC -- my monk was utterly destroying him.
His highest hit was 735 on a tank with 13% shielding. With bard resists at 425+ for most characters in the group, his AE rarely landed. Healers were positioned at the fireplace to avoid the AE.
He *does* cast an unresistable 1600ish lifetap, but that's only near the end in his final form (10-15% or so).
Edited, May 9th 2020 1:13am by stealingjoy