Oubliette

When this enchantment enters, target creature phases out until this enchantment 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.)

Select a creature in play when Oubliette is cast. That creature is considered out of play as long as Oubliette is in play. Hence the creature cannot be the target of spells and cannot receive damage, use special powers, attack, or defend. All counters and enchantments on the creature remain but are also out of play. If Oubliette is removed, creature returns to play tapped.

"On a failed save, target creature becomes paralyzed."

Secret Lair Drop

The List

Double Masters

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.)

Masters Edition

When Oubliette comes into play, remove target creature and all Auras attached to it from the game. Note the number and kind of counters that were on that creature.
When Oubliette leaves play, return the removed card to play under its owner's control tapped with the noted number and kind of counters on it. If you do, return the removed Aura cards to play under their owner's control attached to that permanent.