Mind reading him for his chest password will not affect the battle..the helmet isn't that great either. So no real loss. Nothing special.
To kill him after changing him to his human form, try to get him to come towards you and use the dips in the bridge as cover. His most devastating attacks are ranged. Fight on the bridge...the altar area is asking for a whooping.
Close up in melee he goes down real fast.
Use summons / creature as fodder to close the gap with a distraction...as all enemy will attack summoned beings first.
I kept getting my rear handed to me by his ranged attacks..couldn't even get close to the altar. Then I realized the bridge is more defensible and the dips allow for cover and the opportunity to get in close fast without getting nailed from across the room.
My lvl 13 fighter had no problem shredding him up close...didn't even need summons.
And again the loot from his chest is nothing special...
Seems they toned down loot drops with the latest patch...
