Cavalier of Dawn [Core Set 2020 Prerelease Promos] Ral Leviathan can't attack unless you

Leviathan can't attack unless you sacrifice two Islands

put one onto the battlefield tapped and the other into your hand

put that card on top of your library

"I'd call that a successful first test

Whenever Drana

Cavalier of Dawn [Core Set 2020 Prerelease Promos] Ral Leviathan can't attack unless youSet: Core Set 2020 Prerelease Promos Type: Creature Elemental Knight Rarity: Mythic Cost: {2}{W}{W}{W} Vigilance When Cavalier of Dawn enters the battlefield, destroy up to one target nonland permanent. Its controller creates a 3 3 colorless Golem artifact creature token. When Cavalier of Dawn dies, return target artifact or enchantment card from your graveyard to your hand.