The Tricky Coin

{3} - Target opponent flips a coin:
•Heads - Opponent sacrifices a creature they control.
•Tails - You must pay {3} to target a creature. That
creature is Exiled. (If you cannot afford to pay {3}, opponent searches their library for a land card,
puts it onto the battlefield tapped, then shuffles)

Once used, opponent places The Tricky Coin into
their hand and it costs an extra {1} to bring onto the battlefield.