Name:Mana Vault
ManaCost:1
Types:Artifact
A:AB$ Mana | Cost$ T | Produced$ C | Amount$ 3 | SpellDescription$ Add {C}{C}{C} to your mana pool.
K:CARDNAME doesn't untap during your untap step.
T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | TriggerZones$ Battlefield | OptionalDecider$ You | Execute$ TrigUntap | TriggerDescription$ At the beginning of your upkeep, you may pay {4}. If you do, untap CARDNAME.
T:Mode$ Phase | Phase$ Draw | ValidPlayer$ You | IsPresent$ Card.Self+tapped | Execute$ TrigDamage | TriggerDescription$ At the beginning of your draw step, if CARDNAME is tapped, it deals 1 damage to you.
SVar:TrigUntap:AB$Untap | Cost$ 4 | Defined$ Self
SVar:TrigDamage:AB$DealDamage | Cost$ 0 | Defined$ You | NumDmg$ 1
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/mana_vault.jpg
Oracle:Mana Vault doesn't untap during your untap step.\nAt the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault.\nAt the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you.\n{T}: Add {C}{C}{C} to your mana pool.