Arcane Adaptation [Ixalan Prerelease Promos] Shadows over Innistrad Tokens Set: Mercadian Masques Type: Instant

Set: Mercadian Masques Type: Instant Rarity: Rare Cost: {3}{W} You may exile a white card from your hand rather than pay this spell's mana cost

{1}{G}{W}{U}: Put Derevi onto the battlefield from the command zone

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {0} Counter target spell

I never saw one alive before

except it's a 4/4 black Zombie Cat with no mana cost

Arcane Adaptation [Ixalan Prerelease Promos] Shadows over Innistrad Tokens Set: Mercadian Masques Type: InstantSet: Ixalan Prerelease Promos Type: Enchantment Rarity: Rare Cost: {2}{U} As Arcane Adaptation enters the battlefield, choose a creature type. Creatures you control are the chosen type in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.