Gambling Ring

When Gambling Ring enters the
battlefield, return a land you control to its
owner's hand.
Minigame — {t}: Add {c}. Then roll a
six-sided die.
If you rolled a 1 or a 2, add {c}.
If you rolled a 3, 4, or 5, add {r}.
If you rolled a 6, add {r}{r} and you win the
minigame.