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}.
NM-Mint - $1,574.00
Lightly Played - $1,416.60
Moderately Played - $1,259.20
Heavily Played - $1,101.80
Damaged - $787.00
NM-Mint Non English - $1,574.00
Lightly Played Non English - $1,416.60
Moderately Played Non English - $1,259.20
Heavily Played Non English - $1,101.80
Damaged Non English - $787.00