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Black Sun's Zenith [Mirrodin Besieged]
| Set: | Mirrodin Besieged |
| Type: | Sorcery |
| Rarity: | Rare |
| Cost: | {X}{B}{B} |
Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.
"Under the suns, Mirrodin kneels and begs us for perfection."
—Geth, Lord of the Vault