Earth

Earth enters the battlefield tapped. {T}: Add {W} or {U}. Global Defense: Whenever a creature or Vehicle attacks you, you may sacrifice a Clue. If you do, tap that creature or Vehicle. It doesn’t untap during its controller’s next untap step. Mission Command: {2}, {T}, Sacrifice a Clue: Create a 1/1 white U.S. Marine Soldier token with vigilance.