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 - $99.000
Lightly Played - $79.200
Moderately Played - $69.300
Heavily Played - $59.400
Damaged - $49.500
Near Mint Spanish - $99.000
Lightly Played Spanish - $79.200
Moderately Played Spanish - $69.300
Heavily Played Spanish - $59.400
Damaged Spanish - $49.500