Kiora Bests the Sea God [Theros Beyond Death Prerelease Promos] TG21 Creatures can't attack you unless

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you

Sacrifice an artifact: Add an amount of R equal to the sacrificed artifact's mana value

final research note

Set: The Lord of the Rings: Tales of Middle-Earth Commander Type: Legendary Land — Gate Rarity: Rare As The Black Gate enters the battlefield

it has "You may cast this card from exile as long as you've cast another spell this turn

Kiora Bests the Sea God [Theros Beyond Death Prerelease Promos] TG21 Creatures can't attack you unlessSet: 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.