Up for sale is the shifting Bioplasm, a rare card from the Guildpact expansion of Magic: the Gathering. These are the original, black-bordered, English version.
Bioplasm: 4/4 Green Creature (Ooze); whenever Bioplasm attacks, remove the top card of your library from the game; if it's a Creature card, Bioplasm gets +X/+Y until end of turn, where X is the removed Creature card's power and Y is its toughness; (A * on a card not in play is 0.); casting cost 3GG.
These cards are all in at least Very Fine condition, with most being in unplayed, Mint/Near Mint condition.
