S5E34 Stairwell to Lich Hell

The big beefy demon dude with a plate of iron nailed to his face has tumbled into a corner of a stairwell and it's getting pretty dicey to just stand around in that stairwell. What lies on the other side of the door at the bottom is what comes next, and yeah, it's probably gonna be a mean trap that everyone saw coming but almost kills them anyway.