Up for sale is the growing Bloodhall Ooze, a rare card from the Conflux expansion of Magic: the Gathering. This is the original, black-bordered, English version.
Bloodhall Ooze: 1/1 Red Creature (Ooze); at the beginning of your upkeep, if you control a Black Permanent, you may put a +1/+1 counter on Bloodhall Ooze; at the beginning of your upkeep, if you control a Green Permanent, you may put a +1/+1 counter on Bloodhall Ooze; casting cost R.
These cards are all in at least Very Fine condition, with most being in unplayed, Mint/Near Mint condition.