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 - £117.40
Lightly Played - £99.80
Moderately Played - £82.20
Heavily Played - £58.70
Damaged - £35.30
Near Mint Non English - £117.40
Lightly Played Non English - £99.80
Moderately Played Non English - £82.20
Heavily Played Non English - £58.70
Damaged Non English - £35.30