The "Leonardo, Sewer Samurai (Borderless) (Gold-Stamped Signature) Playtest Card" is a rare and mythic card from the Magic: The Gathering game, featuring the iconic character Leonardo from the Teenage Mutant Ninja Turtles set. This white-themed creature card has a defense/toughness of 3 and an attack/power of 3, costing 3 mana to cast. Illustrated by Kevin Eastman, this English-language card boasts a unique borderless design with a foil finish, making it a valuable addition to any collector's deck.