Well Starseer has like 140k HP and has a full heal berserk at low hp lol
My Ophilia did over 9k per hit on any elemental attack on top of doing the attack twice in a row, which roughly amounted to 36-40k damage, but I can't get that setup every time because Starseer disables buffs and takes 12 hits to break her shield or 4 dark damage.
She makes literally every other boss in the game look like a joke until you figure out dancer ult affects all single target skill
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