April 21st, 2024 - Server updated to version 2.30hApril 10th, 2024 - Server updated to version 2.30gApril 2nd, 2024 - Server updated to version 2.30f
As you can see I started by casting Mordenkainen's Disjunction before doing my offensive spells. The weird this is once you get him out of the throne room, and into the pit of bones, then spells start working on him.