We're on generation 48, when i started to fight him today he was at 9.5 health, i've been tracking how much damage ive done and where i left his health at when i took breaks, over the course of about 6 hours, nobody else has done damage to him but me.
He's down to 3.4 health btw, if any of you want in on the grace, its gonna be in an hour or so.

2.4 health now

Grace

How the hell did u bring him down in 1 day? Ive tryed to chunk his hp bar 15% pet try but dmg wont register and even it would - it would take the whole day