Ahhhh nothing like domestic violence and attacking the person your wife cheated on you with for a rock paper scissors tournament (kinda want this to be chosen lolz)
How about rock paper scissors lizard Spock? The rules are: Scissors cuts paper, paper covers rock, rock crushes lizard, lizard poisons Spock, Spock smashes scissors, scissors decapitates lizard, lizard eats paper, paper disproves Spock, Spock vaporizes rock, and as it always has, rock crushes scissors
Cloth, egg, milk Cloth beats egg because cloth wraps around egg Egg beats milk because it floats in milk And milk beats cloth because cloth gets all mushy in milk
Since it's rock paper sisscors have both players in different areas so one can't see the other and use sign as paper stone as rock and the sword artifact as paper
Player Bouncer Qi Player beats Qi because we milk mr qi for gems (and we're an even better god than he is) Qi beats bouncer because he's the boss Bouncer beats player because he can stop us out of bounds-ing into the casino.