..... Different bosses have different damage mitigation, where's your current Baleroc cap showing the change in damage?
1,106,696 | 324 ticks | 3415.7 avg tick
1,209,970 | 277 ticks | 4368.1 avg tick
790,621 | 321 ticks | 2463.0 avg tick
Rather than being nerfed, isn't it just as likely that Ultraxion has a higher damage mitigation to physical ticks than Baleroc had?
Zon'ozz isn't really a good fight to look at. He gets a stacking damage taken debuff when the orbs hit him. 10% per bounce.