Winter Orb (Mark Justice) [Pro Tour Collector Set] Merfolk Warrior sacrifice Koskun Falls unless you

sacrifice Koskun Falls unless you tap an untapped creature you control

Set: The Dark Type: Enchantment Rarity: Rare Cost: {2}{G}{G}{G}{G} Green creatures have forestwalk

Set: International Collectors' Edition Type: Enchantment Rarity: Uncommon Cost: {G}{G} {G}{G}: Counter target black spell

It doesn't untap during its controller's next two untap steps

Set: Unlimited Edition Type: Enchantment — Aura Rarity: Rare Cost: {B}{B} Enchant artifact

Winter Orb (Mark Justice) [Pro Tour Collector Set] Merfolk Warrior sacrifice Koskun Falls unless youSet: Pro Tour Collector Set Type: Artifact Rarity: Rare Cost: {2} As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.