Tyche isn't interested in fights, since they would be to easy
Tyche can manipulate the cause and effect of different outcomes with no restrictions
Tyche can force bad luck on the opponent
Tyche can increase probability of things to 100% or decrease them to 0% with no limit (Example: Tyche can lower his chances of being hit to 0)
Write story with dialogue, The opponent sees Tyche winning in the casino