Bladecoil Serpent [The Brothers' War: Prerelease Promos] Plane except it's a white Zombie

except it's a white Zombie Bird Warrior with no mana cost

spells you cast from your hand with mana value X or less have cascade

"Let the rest of Ravnica sneer

Set: Revised Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one color word with another

"Though Serra has not been seen for twenty years

Bladecoil Serpent [The Brothers' War: Prerelease Promos] Plane except it's a white ZombieSet: The Brothers' War: Prerelease Promos Type: Artifact Creature Serpent Rarity: Mythic Cost: {X}{6} When Bladecoil Serpent enters the battlefield, for each {U}{U} spent to cast it, draw a card. When Bladecoil Serpent enters the battlefield, for each {B}{B} spent to cast it, each opponent discards a card. When Bladecoil Serpent enters the battlefield, for each {R}{R} spent to cast it, it gets +1 +0 and gains trample and haste until end of turn.