Death's Oasis (Promo Pack) [Ikoria: Lair of Behemoths Promos] Beast Horror each of those creatures has

each of those creatures has "Whenever an opponent casts a spell

look at the top two cards of your library

no one is safe

• Destroy target creature with mana value less than or equal to the number of cards in its controller's graveyard

When Invasion of Zendikar enters the battlefield

Death's Oasis (Promo Pack) [Ikoria: Lair of Behemoths Promos] Beast Horror each of those creatures hasSet: Ikoria: Lair of Behemoths Promos Type: Enchantment Rarity: Rare Cost: {W}{B}{G} Whenever a nontoken creature you control dies, mill two cards. Then return a creature card with lesser mana value than the creature that died from your graveyard to your hand. {1}, Sacrifice Death's Oasis: You gain life equal to the highest mana value among creatures you control.