Sphere of Annihilation
Card Rules and Details
Card Type: Artifact
Mana Cost: {X}{B}
Oracle Rules Text: This artifact enters with X void counters on it. At the beginning of your upkeep, exile this artifact, all creatures and planeswalkers with mana value less than or equal to the number of void counters on it, and all creature and planeswalker cards in graveyards with mana value less than or equal to the number of void counters on it.
Set: Adventures in the Forgotten Realms (#121), Rarity: Rare, Artist: Jason Felix
Artifact
Black
Rare
$0.28
Regular
$0.26
✨ Foil
€0.19
Euro
Prices as of Sep 02, 2026. Market values fluctuate; double-check current pricing before purchasing.
Historical Printings & Sets (1)
1 Languages
Official Rulings (1)
2021-07-23
If a permanent on the battlefield or a card in a graveyard has {X} in its mana cost, X is 0 when determining that card's mana value.
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