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 - $54.550.000
Lightly Played - $51.830.000
Moderately Played - $46.370.000
Heavily Played - $40.920.000
Damaged - $38.190.000
Near Mint Spanish - $54.550.000
Lightly Played Spanish - $51.830.000
Moderately Played Spanish - $46.370.000
Heavily Played Spanish - $40.920.000
Damaged Spanish - $38.190.000