Oubliette (Dark Mana Cost) [Arabian Nights] Elf Advisor Set: Eldritch Moon Type: Legendary

Set: Eldritch Moon Type: Legendary Creature — Eldrazi Rarity: Mythic Cost: {13} This spell costs {1} less to cast for each card type among cards in your graveyard

His prodigies subdued the western sphere

Set: Unlimited Edition Type: Sorcery Rarity: Rare Cost: {2}{U} Each player shuffles their hand and graveyard into their library

An utterly silent chamber

Oubliette (Dark Mana Cost) [Arabian Nights] Elf Advisor Set: Eldritch Moon Type: LegendarySet: 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.)