Up for sale is the transmogrifying Argent Mutation, an uncommon card from the New Phyrexia expansion of Magic: the Gathering. This is the original, black-bordered, English version.
Argent Mutation: Instant; target Permanent becomes an Artifact in addition to its other types until end of turn; draw a card; casting cost 2U.
These cards are all in at least Very Fine condition, with most being in unplayed, Mint/Near Mint condition.