Not sure if it’s intended to be % hp damage or not but in the Corrupted Vazuela fight in the first Abyss Dungeon, the second telegraphed attack after he divebombs a party member is 1 shotting me as a mayhem berzerker where it only does around 20-30% of my party members hp.
We are all at the same ilvl.
Seems to me like the damage is not being reduced by the 65% damage reduction of Mayhem.