Circle of Protection: White [International Collectors' Edition] Merfolk Cleric Whenever a player attacks one

Whenever a player attacks one of your opponents

000 Type: Legendary Creature — Human Tyranid Wizard Rarity: Mythic Cost: {1}{G}{U}{R} Spiritual Leader — At the beginning of combat on your turn

Set: Murders at Karlov Manor Promos Type: Legendary Creature — Demon Rarity: Mythic Cost: {4}{B}{R} Flying

Set: Summer Magic / Edgar Type: Instant Rarity: Rare Cost: {B} Target spell or permanent becomes black

Set: The List Type: Instant Rarity: Rare Cost: {U} Search your library for an instant or sorcery card

Circle of Protection: White [International Collectors' Edition] Merfolk Cleric Whenever a player attacks oneSet: International Collectors' Edition Type: Enchantment Rarity: Common Cost: {1}{W} {1}: The next time a white source of your choice would deal damage to you this turn, prevent that damage.