Arcane Adaptation [Ixalan] Nightmare Demon −8: Chandra Nalaar deals 10

−8: Chandra Nalaar deals 10 damage to target player or planeswalker and each creature that player or that planeswalker's controller controls

Set: Premium Deck Series: Fire and Lightning Type: Instant Rarity: Uncommon Cost: {1}{R} Price of Progress deals damage to each player equal to twice the number of nonbasic lands that player controls

Set: Portal Three Kingdoms Type: Creature — Snake Rarity: Common Cost: {2}{B} Swampwalk (This creature can't be blocked as long as defending player controls a Swamp

Set: Unlimited Edition Type: Artifact Rarity: Uncommon Cost: {4} {1}

they're treated as though they don't exist

Arcane Adaptation [Ixalan] Nightmare Demon −8: Chandra Nalaar deals 10Set: Ixalan 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.