Nethroi, Apex of Death [Ikoria: Lair of Behemoths Prerelease Promos] White They mutate into the creature

They mutate into the creature on top plus all abilities from under it

each time it destroys an opponent's monster by battle: You can add 1 "Spellbook" Spell Card from your Deck to your hand

As Sacred Foundry enters the battlefield

destroy that monster

Set: Astral Pack 2 Card type: Normal Spell Rarity: Ultimate Rare Target 1 Spellcaster-Type monster you control

Nethroi, Apex of Death [Ikoria: Lair of Behemoths Prerelease Promos] White They mutate into the creatureSet: Ikoria: Lair of Behemoths Prerelease Promos Type: Legendary Creature Cat Nightmare Beast Rarity: Mythic Cost: {2}{W}{B}{G} Mutate {4}{G W}{B}{B} (If you cast this spell for its mutate cost, put it over or under target non Human creature you own. They mutate into the creature on top plus all abilities from under it.) Deathtouch, lifelink Whenever this creature mutates, return any number of target creature cards with total power 10 or less from