Teneb, the Harvester is a rare Legendary Creature — Dragon card from Commander 2011 Oversized (OCMD), collector number 230. Current market price: — (foil $2.52), TCGplayer market prices via Scryfall.
Flying Whenever Teneb deals combat damage to a player, you may pay {2}{B}. If you do, put target creature card from a graveyard onto the battlefield under your control.