Artholath was hit head on, being blasted off the ground and into the wall, also potentially launching off anyone who had been on top of him. His aura of energy exploded, and since his form was only that of a clone, his souls was not present to leave.
Previously sustained damage, with the lightning hit, combined to cause all inner components of his body to explode, exploding cold air and magical essence across the entire chamber, with his body falling limply down the wall.
Previously sustained damage, with the lightning hit, combined to cause all inner components of his body to explode, exploding cold air and magical essence across the entire chamber, with his body falling limply down the wall.