Product Details
When you play Energy Vortex, choose target opponent.At the beginning of your upkeep, remove all energy counters from Energy Vortex.During chosen opponent’s upkeep, he or she pays 1 for each energy counter on Energy Vortex, or it deals 3 damage to him or her.X: Put X energy counters on Energy Vortex. Use this ability only during your upkeep.
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