Betting Casino

{t}, Pay 1 life: Flip a coin. If you win the flip, you
gain 2 life.

{t}, Pay 5 life: Flip a coin. If you win the flip, you
gain 10 life.

{10}: Flip three coins. If you win all three, target
player loses the game.

{2}: Flip a coin. If you win the flip, add {c}{c}{c}{c}.