Echo Tracer is a common Creature — Human Wizard card from The List (PLST), collector number LGN-37. Current market price: $0.07, TCGplayer market prices via Scryfall.
Morph {2}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is turned face up, return target creature to its owner's hand.