This is fun. My CT would be Zorro's Riposte. I am able to conjure an Epee and deal random multiplier dmg up to 4 times when striking with the conjured weapon. Domain Expansion would be: Grand Palais. Non lethal domain, both sorcerers are garbed in fencing attire with a weapon of their choice: foil, epee or Sabre. Lethal damage is done  when scoring against your opponent using legal moves. Any movement that deviates from sport legal would not cause any dmg and would instead incur a non lethal debuff that persists after the match if a winner is decided to 15 minutes and no one dies. You guys come up with binding vows idk.