name: Mana Vortex
originalText: When you cast Mana Vortex, you may sacrifice a land. If you don't, counter Mana Vortex.
  At the beginning of each player's upkeep, that player sacrifices a land.
  When there are no lands on the battlefield, sacrifice Mana Vortex.
printings: DRK, ME3
text: 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 of their choice.
  When there are no lands on the battlefield, sacrifice this enchantment.
type: Enchantment