![Unbound Flourishing [Modern Horizons] 21 Set: XY: Black Star Promos](https://cdn.shopify.com/s/files/1/0719/1638/8627/files/078c4ce0-5706-5cdb-9ff0-c21768bf9725.jpg?v=1730992831)
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Set: XY: Black Star Promos Type: Water Rarity: Promo Retreat cost: Colorless
Set: Sword & Shield: Black Star Promos Type: Lightning Rarity: Promo Retreat cost: Colorless
Set: EX: Delta Species Type: Fire
Set: Diamond & Pearl: Legends Awakened Type: Metal Rarity: Promo Retreat cost: Colorless
Hedron Grinder
Unbound Flourishing [Modern Horizons] 21 Set: XY: Black Star PromosSet: Modern Horizons Type: Enchantment Rarity: Mythic Cost: {2}{G} Whenever you cast a permanent spell with a mana cost that contains {X}, double the value of X. Whenever you cast an instant or sorcery spell or activate an ability, if that spell's mana cost or that ability's activation cost contains {X}, copy that spell or ability. You may choose new targets for the copy.
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