Shelob, Dread Weaver is a rare Legendary Creature — Spider Demon card from Tales of Middle-earth Commander (LTC), collector number 431. Current market price: $8.87 (foil $8.17), TCGplayer market prices via Scryfall.
Whenever a nontoken creature an opponent controls dies, exile it. {2}{B}, Put a creature card exiled with Shelob into its owner's graveyard: Put two +1/+1 counters on Shelob. Draw a card. {X}{1}{B}: Put target creature card with mana value X exiled with Shelob onto the battlefield tapped under your control.