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 - £2,170.40
Lightly Played - £1,844.80
Moderately Played - £1,519.30
Heavily Played - £1,085.20
Damaged - £651.10
Near Mint Non English - £2,170.40
Lightly Played Non English - £1,844.80
Moderately Played Non English - £1,519.30
Heavily Played Non English - £1,085.20
Damaged Non English - £651.10