10M normal Immerseus’ swirl ability is hitting a lot harder than it states in the dungeon journal. Last Thursday, before the latest patch, the ability seemed fine. Now it is one-shotting people in the raid. According to the combat log, it is ticking for 120k+ per tick. When it should be hitting for 30K. Corrosive blast debuff causes increased shadow damage taken by 300%, but the dps and healers are not getting that debuff and the swirl ability is still one shooting them. While tanking, one of the pulls it spawned on me, and it killed me before it even started to sweep the room and I did not have the corrosive blast debuff.
Having this exact same issue on my druid. Instead of getting hit once for 30k, combat log says I was hit by swirl 3 times for 200k damage each hit.