Oubliette (Dark Mana Cost) [Arabian Nights] Artifact Set: Beta Edition Type: Instant

Set: Beta Edition Type: Instant Rarity: Common Cost: {B} Add {B}{B}{B}

As Steam Vents enters the battlefield

Set: Modern Masters 2015 Type: Creature — Elemental Rarity: Rare Cost: {1}{B}{B} Wither (This deals damage to creatures in the form of -1/-1 counters

Spend this mana only to cast spells

Set: Commander 2011 Type: Enchantment Rarity: Rare Cost: {3}{R} Your opponents can't search libraries

Oubliette (Dark Mana Cost) [Arabian Nights] Artifact Set: Beta Edition Type: InstantSet: 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.)