"You think destroying my body will stop me!?"

Actually, Balthazar, I didn't think it would. I just wanted to kill you. I would have had my expectations met if he popped back up down in the Shadowfell, but uh... Nah, it uh, it worked like I thought it would.

Knocked the door, let the Shadow Guys beat his creatures down, finished him off with a level V Fireball. ¯_(ツ)_/¯