Mana Vault [Beta Edition] Happy Holidays if it's on the battlefield

if it's on the battlefield

Set: Mirrodin Type: Creature — Human Wizard Rarity: Rare Cost: {1}{U}{U} At the beginning of each opponent's upkeep

where X is the difference

Set: Exodus Type: Sorcery Rarity: Rare Cost: {2}{W}{W} Each player chooses from among the permanents they control an artifact

Mana Vault [Beta Edition] Happy Holidays if it's on the battlefieldSet: Beta Edition Type: Artifact Rarity: Rare Cost: {1} 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}.