Up for sale is the summoning Æther Vial, an uncommon card from the Darksteel expansion of Magic: the Gathering. These are the original, black-bordered, English version.
Æther Vial: Artifact; at the beginning of your upkeep, you may put a charge counter on Æther Vial; tap Æther Vial to allow you to put a Creature card with converted mana cost equal to the number of charge counters on Æther Vial from your hand into play; casting cost 1.
These cards are all in at least Very Fine condition, with most being in unplayed, Mint/Near Mint condition.