Disruptive Pitmage is a common Creature — Human Wizard card from Onslaught (ONS), collector number 81. Current market price: $0.14 (foil $1.62), TCGplayer market prices via Scryfall.
{T}: Counter target spell unless its controller pays {1}. 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.)