Trade Caravan 
Creature — Human Nomad
At the beginning of your upkeep, put a currency counter on this creature. Remove two currency counters from this creature: Untap target basic land. Activate only during an opponent's upkeep.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL