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 - $99.00
Lightly Played - $79.20
Moderately Played - $69.30
Heavily Played - $59.40
Damaged - $49.50
Near Mint Spanish - $99.00
Lightly Played Spanish - $79.20
Moderately Played Spanish - $69.30
Heavily Played Spanish - $59.40
Damaged Spanish - $49.50