Dovahkiin vs. Balrog of Moria
Dovahkiin is wandering in Blackreach and finds a hidden path, it leads him to Moria, where he wanders for a while. He kills multiple goblins and trolls, which gets the Balrog's attention. The Dovahkiin is skilled with both magicka and weaponry. They fight in the hall of Moria where the Fellowship fought the goblin hordes in the movie.
Two rounds:
1. Book Balrog
2. Movie Balrog