Up for sale is the boosting Berserk, an uncommon card from the Unlimited (2nd) Edition of Magic: the Gathering. These are the original, white-bordered, English version.
Berserk: Instant; play Berserk only before the combat damage step; target Creature gains Trample and gets +X/+0 until end of turn, where X is its power; at end of turn, destroy that Creature if it attacked this turn; casting cost G.
These cards are all in at least Very Fine condition, with most being in unplayed, Mint/Near Mint condition.