Oubliette (Dark Mana Cost) [Arabian Nights] Modern the controller of the permanent

the controller of the permanent it becomes sacrifices it at the beginning of the next cleanup step

you may pay {B}

{T}: Untap target creature

Set: Beta Edition Type: Artifact Rarity: Rare Cost: {2} Time Vault enters the battlefield tapped

Oubliette (Dark Mana Cost) [Arabian Nights] Modern the controller of the permanentSet: Arabian Nights Type: Enchantment Rarity: Common Cost: {1}{B}{B} When Oubliette enters the battlefield, target creature phases out until Oubliette leaves the battlefield. Tap that creature as it phases in this way. (Auras and Equipment phase out with it. While permanents are phased out, they're treated as though they don't exist.)