Doc Ock's Tentacles is a rare Artifact — Equipment card from Marvel's Spider-Man Promos (PSPM), collector number 162s. Current market price: — (foil $1.64), TCGplayer market prices via Scryfall.
Whenever a creature you control with mana value 5 or greater enters, you may attach this Equipment to it. Equipped creature gets +4/+4. Equip {5}