Mana Vault [Ultimate Masters] Sliver Mutant Set: Vanguard Series Type: Vanguard

Set: Vanguard Series Type: Vanguard Rarity: Rare Sacrifice a permanent: Return target creature to its owner's hand

if it's on the battlefield

Set: Fifth Edition Type: Land Rarity: Rare Whenever City of Brass becomes tapped

where X is 4 minus the number of cards in their hand

Mana Vault [Ultimate Masters] Sliver Mutant Set: Vanguard Series Type: VanguardSet: Ultimate Masters Type: Artifact Rarity: Mythic 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}.