You Ain't Messin With No Barrel Fish
Marivhon, Schmektor's already bandaged. I'm giving you a penalty to hit because you're outside the cage, meaning that round 3 is a miss also, but round 4 still hits.
Moth, two nice hits. The Knight ain't AC 7 though (he's plate mail, AC:3). Being the only one still up and active in the Tart, the Knight's had about enough of you and chainsaws you for 11. That puts you down to -4.
We'll put Marivhon's bandage action towards Moth, and my parsing of the rest of the actions is: everyone helps pull out the unconscious guys and closes the door on the Knight.
Okay, back to square one, except the newbs are unconscious. Sorry guys, I hate to do that to you, as both of you have been good frequent posters, and now you're out of commission.
Knight + Chainsaw still in Tart, re-attempts to saw through bars to kill Cinder. Marivhvon, if you try more through-bars halberding, the Knight is going to chainsaw your magic halberd. It ain't a sure thing, but this is a Knight of Armek, not a Barrel Fish.