How would you model Luke's fight with the rancor in Edge of the Empire?
Luke doesn't have any weapons so he's not literally fighting the beast until he depletes its wound pool, he just has a clever idea and gets lucky on his toss of the rock.
It's probably not something you'd want to do all the time, but it seems like a good way to reward a player having a fun idea to get out of a tough situation.
Would you have him make a skill check to see if he tosses the rock accurately and at the right time to bring the door crashing down on the rancor?
Possibly having him make a perception check prior to that, to detect the existence of the door and its switch?