Got it. I kinda find the "fanfic-status" bit weird (since really, the only difference between the Host and most other entrants is that previous to his match his story wasn't up anywhere, which is now fix'd), but I can definitely understand the other two concerns. Looking at it that way I can definitely comprehend why you'd find the Host problematic - even if I managed to remain perfectly impartial during his 'bouts, having the author immediately on hand to shed light on what he can and can't do, and what he might or mightn't do holds his opponent hostage, in a way. It transforms him into a Schrödinger's character who could potentially adapt to beat his enemy every time if the author felt like being an ass.
And I'll think long and hard about how official I want MPFC to be. I feel like I almost got where I wanted to go with this tourney, at least so far, but having to do rule clarifications every other match tells me something is wrong and I have to clear things up. The concept is there, but the details and executiona re still off.
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Currently playing: League of Legends, Chrono Cross.
Current Projects: Fool's Overture, CYOA: http://www.gamefaqs.com/boards/8-gamefaqs-contests/60143513