He has health regen so you probably just lack dps. Level up a bit and try again. At level 50 warrior finally learns weight infusion which, alongside the other elemental infusions + crit infusion + full charge, lets merc do a special smash attack making the fight pretty easy.how to kill the blue sorcerer (the third one)
i have been fighting him for 10min straight but nothing seems to be changed
is there anything that i missed