Mana Vault [Revised Edition] Magic Player Rewards 2006 if Clockwork Avian attacked or

if Clockwork Avian attacked or blocked this combat

−2: Reveal the top four cards of your library

Sacrifice Engineered Explosives: Destroy each nonland permanent with mana value equal to the number of charge counters on Engineered Explosives

and creature types of the last creature card exiled with Duplicant

{U}: Wall of Water gets +1/+0 until end of turn

Mana Vault [Revised Edition] Magic Player Rewards 2006 if Clockwork Avian attacked orSet: 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}.