Cheapest priced copy (Onslaught): $0.35 at Card Kingdom, near mint, their price list as of .
Disruptive Pitmage 
Creature — Human Wizard · 1/1 · Common · Onslaught · #81
{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.)
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Onslaught | 81 | Common | $0.35 | $1.99 |