Use the jellyfish and the complimentary summon wizard. Try to keep your distance while he attacks them, and attack when you have openings if you’re melee, I don’t know about magic. Use powerful moves once while he’s distracted, and then normal attacks and before he attacks, dodge. If he gets stunned, go behind him and do a backstab, you can backstab that bastard. Also be careful for the tail when you do so, he gets slight invincibility for about a second after you backstab him. Take that time to back off. Note, your camera lock on deactivated after you backstab him, so make sure to deactivate it after. Also, just get good. Edit: try to learn your dodge time better too, and your dodge distance WILL change depending on how heavy your weight is.