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 - £1,436.00
Lightly Played - £1,220.60
Moderately Played - £1,005.20
Heavily Played - £718.00
Damaged - £430.80
Near Mint Non English - £1,436.00
Lightly Played Non English - £1,220.60
Moderately Played Non English - £1,005.20
Heavily Played Non English - £718.00
Damaged Non English - £430.80