Appeals Committee. Disputed situations in tournaments.

300-500 mana points can be decisive. And if it was truly impossible to kill even one dragon in an entire turn, what's there to talk about?

So, you see, people are willing to accept real losses for the sake of following the rules – but couldn't they just wait a bit?
Reasonableness is good, but it's better not to rely on it. "Treat people like gods, but treat them like slaves, and there will be happiness" (said an ancient philosopher).