Whenever a player attacks one of your opponents
Set: Summer Magic / Edgar Type: Creature — Merfolk Rarity: Rare Cost: {U}{U} Other Merfolk get +1/+1 and have islandwalk
Set: War of the Spark Promos Type: Legendary Planeswalker — Teferi Rarity: Rare Cost: {1}{W}{U} Each opponent can cast spells only any time they could cast a sorcery
Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {2} Whenever a land enters the battlefield
Set: Modern Horizons Type: Instant Rarity: Rare Cost: {U} Counter target instant or sorcery spell unless its controller pays {1}
Odric, Blood-Cursed [Innistrad: Crimson Vow Prerelease Promos] Special Whenever a player attacks oneSet: Innistrad: Crimson Vow Prerelease Promos Type: Legendary Creature Vampire Soldier Rarity: Rare Cost: {1}{R}{W} When Odric, Blood Cursed enters the battlefield, create X Blood tokens, where X is the number of abilities from among flying, first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance found among creatures you control. (Count each ability only once.)