Mana Vault does not untap during your untap phase.At the end of your upkeep, if Mana Vault is tapped, it deals 1 damage to you.4: Untap Mana Vault at end of upkeep. Use this ability only during your upkeep.T: Add three colorless mana to your mana pool. Play this ability as a mana source.
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Rarity:R
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#:388
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Card Type:Artifact
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Casting Cost: 1
