Voidmage Prodigy is a rare Creature — Human Wizard card from Magic Player Rewards 2003 (P03), collector number 1. Current market price: $11.20, TCGplayer market prices via Scryfall.
{U}{U}, Sacrifice a Wizard: Counter target spell. Morph {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.)