Up for sale is the boostable Blademane Baku, a common card from the Betrayers of Kamigawa expansion of Magic: the Gathering. These are the original, black-bordered, English version.
Blademane Baku: 1/1 Red Creature (Spirit); whenever you play a Spirit or Arcane Spell, you may put a ki counter on Blademane Baku; spend 1 mana and remove X ki counters from Blademane Baku to have Blademane Baku get +2/+0 until end of turn for each ki counter removed; casting cost 1R.
These cards are in Very Fine to Near Mint condition.
