Jocasta, Automaton Avenger is a rare Legendary Artifact Creature — Robot Hero card from Marvel Super Heroes Commander (MSC), collector number 439. Current market price: $2.00, TCGplayer market prices via Scryfall.
Flying Whenever your commander deals combat damage to a player, put a +1/+1 counter on Jocasta. Whenever you attack with your commander, if this card is in your graveyard, you may return it to the battlefield tapped and attacking.