Dude cmon, he was perfectly fine until you modified his RNG mechanics. He was so fucking hard back then, and he still would be even with world buffs.
After these changes Alliance and Horde combined only have had two wipes on KT. Before that mid-week change both of the guilds felt like we were beating our head against a wall, wiping 3-4 hours on him in 1 day.
( Also wanna know why on earth you guys thought these changes were a good idea, to nerf him this much when only 1 guild still had killed him. As well as where did u get the info it was more blizzlike (lol))
Here are the changes there were done two weeks ago for the unknown:
Frostbolt nova was 15-17 seconds and is now 15 seconds but is skipped 50% of the time
Frostbolt (single target) was 5-7 seconds and is now 3 seconds (but it will end up being 5 due to spell school lockout when interrupted) and is skipped 75% of the time
Frost blast was 30-60 seconds and now is 30-45 but is skipped 40% of the time
Shadow fissure was 10-20 seconds and is now 15-20 with a 15% chance to skip detonate mana was 20-25 seconds and is now 20-30 with a 15% chance to skip
Mind control was 60-75 seconds and is now 72-86 with a 10% chance to skip p3 adds were coming out at random intervals between 5-7 seconds and spawning randomly (which is incorrect on both counts) they now spawn 1-2 at 10 second intervals, and never in the same spot twice the abilities with narrower/more frequent timers are made easier overall by the chance to skip them