Mana Vortex [The Dark] Nastiest while frost giant longships have

while frost giant longships have been pillaging along the Sword Coast

Set: Tempest Type: Artifact Rarity: Rare Cost: {2} Blue spells you cast cost {1} less to cast

Set: Beta Edition Type: Creature — Human Knight Rarity: Rare Cost: {2}{W}{W} {W}{W}

evinced in solid and shade

Set: Masters 25 Type: Creature — Human Rogue Rarity: Rare Cost: {2}{U}{B} Flash

Mana Vortex [The Dark] Nastiest while frost giant longships haveSet: The Dark Type: Enchantment Rarity: Rare Cost: {1}{U}{U} When you cast this spell, counter it unless you sacrifice a land. At the beginning of each player's upkeep, that player sacrifices a land. When there are no lands on the battlefield, sacrifice Mana Vortex.