Oubliette [The List] Foil Set: Odyssey Type: Instant Rarity:

Set: Odyssey Type: Instant Rarity: Rare Cost: {U} Change the target of target spell with a single target unless that spell's controller pays {2}

If you want to kill a lot of goblins

When Master of Waves enters the battlefield

Set: Eternal Masters Type: Creature — Jellyfish Rarity: Common Cost: {2}{U} When Man-o'-War enters the battlefield

Oubliette [The List] Foil Set: Odyssey Type: Instant Rarity:Set: The List Type: Enchantment Rarity: Uncommon 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.)