Mana Vault [Revised Edition] Expansion Set 14 At the beginning of the

At the beginning of the upkeep of enchanted land's controller

Devouring Chaos deals damage equal to the exiled card's mana value to any target

there's an additional combat phase after this phase

then sacrifice it unless you pay its upkeep cost for each age counter on it

Set: Judge Gift Cards 2012 Type: Artifact — Equipment Rarity: Rare Cost: {3} Equipped creature gets +2/+2 and has protection from white and from black

Mana Vault [Revised Edition] Expansion Set 14 At the beginning of theSet: Revised 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}.