Leonardo, Leader in Blue is a uncommon Legendary Creature — Mutant Ninja Turtle card from Teenage Mutant Ninja Turtles (TMT), collector number 196. Current market price: $0.33 (foil $0.50), TCGplayer market prices via Scryfall.
Sneak {3}{W}{W} (You may cast this spell for {3}{W}{W} if you also return an unblocked attacker you control to hand during the declare blockers step. He enters tapped and attacking.) When Leonardo enters, if his sneak cost was paid, creatures you control get +2/+0 until end of turn. {1}{W}: Leonardo gains first strike until end of turn.