Oubliette (Dark Mana Cost) [Arabian Nights] Dwarf Xenagos isn't a creature

Xenagos isn't a creature

(For example

Sacrifice Strip Mine: Destroy target land

Set: Antiquities Type: Artifact Creature — Bird Rarity: Rare Cost: {5} Flying

Set: Amonkhet Invocations Type: Sorcery Rarity: Mythic Cost: {R} Chain Lightning deals 3 damage to any target

Oubliette (Dark Mana Cost) [Arabian Nights] Dwarf Xenagos isn't a creatureSet: 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.)