Glistening Sphere (Extended Art) [Phyrexia: All Will Be One Commander] U-ELE037 or card from "The List"

or card from "The List" (a special card from Magic's history or Universes Within card—found in 25% of packs)

and this card can only be found in one English-Language Collector Booster

Star Wars CCG | DS-61-4 - A New Hope | The Nerd Merchant

Dark Lord Of The Sith - Special Edition | The Nerd Merchant

you may banish a card from the defending hero's soul

Glistening Sphere (Extended Art) [Phyrexia: All Will Be One Commander] U-ELE037 or card from "The List"Set: Phyrexia: All Will Be One Commander Type: Artifact Rarity: Rare Cost: {3} Glistening Sphere enters the battlefield tapped. When Glistening Sphere enters the battlefield, proliferate. T: Add one mana of any color. Corrupted T: Add three mana of any one color. Activate only if an opponent has three or more poison counters.