Kiora Bests the Sea God [Theros Beyond Death Prerelease Promos] Bird Now he returns to ensure

Now he returns to ensure that none follow

Other Rats you control have toxic 1

but I can teach you how to defend against it

(It's an artifact with "T: Sacrifice this artifact: Exile the top card of your library

lifelink {1}{B}{B}: Each creature you control with flying

Kiora Bests the Sea God [Theros Beyond Death Prerelease Promos] Bird Now he returns to ensureSet: Theros Beyond Death Prerelease Promos Type: Enchantment Saga Rarity: Mythic Cost: {5}{U}{U} (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I Create an 8 8 blue Kraken creature token with hexproof. II Tap all nonland permanents target opponent controls. They don't untap during their controller's next untap step. III Gain control of target permanent an opponent controls. Untap it.