Mana Vault doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault. At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you. {T}: Add {C}{C}{C}.
Near Mint - $6.808.100
Lightly Played - $5.446.500
Moderately Played - $4.765.700
Heavily Played - $4.084.900
Damaged - $3.404.100
Near Mint Spanish - $6.808.100
Lightly Played Spanish - $5.446.500
Moderately Played Spanish - $4.765.700
Heavily Played Spanish - $4.084.900
Damaged Spanish - $3.404.100