GMS v.142 - Dawnveil: Demons of Tynerum Update Notes

Hell Gollux is around 20b hp on jaw and 20b on eyes. Or, I take out half of the jaw in the amount of time I take out Madman Ranmaru (2.1b x 5)

I took out half of the eyes before he dc'd me.
He never dr'd me. I heard Blackheart DR sound once and stopped attacking but I didn't see DR symbol.

That's not bad at all o_O just to be sure, this is without killing either shoulder or abdomen?
And I take it you're able to dodge his OHKO attacks? I know ranged classes can avoid his breath, but how were you dealing with the rock guys on the opposite side of where you were? Does he have any other OHKO than the hand swipe during jaw? I'd test it out myself, but exp Maybe when I level.