Thanks so much for the feedback!
Regarding the tournament setting, the combat isn't limited to just one "ring" or even a single venue.
I meant it to be like Street Fighter or Mortal Kombat, where the fights happen in different Arenas, with varied terrains and environments (including the possibility of location-appropriate weapons lying around).
There was supposed to be a whole section for possible Arenas (hinting at flavor mostly), but I left it out because of space constrains. Now that you brought it up, I might attempt to introduce it before the deadline. Hmmm....