Cheapest priced copy (Marvel Super Heroes): $0.35 at Card Kingdom, near mint, their price list as of .
Undercover Skrull 
Creature — Skrull Shapeshifter Villain · 1/1 · Common · Marvel Super Heroes · #194
As long as there are two or more creature cards in your graveyard, this creature gets +2/+2 and is all creature types.
{T}: Add one mana of any color.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel Super Heroes | 194 | Common | $0.35 | $0.49 |