Crafty Octopus is a common Host Creature — Octopus Rigger card from Unstable (UST), collector number 30. Current market price: $0.10 (foil $0.45), TCGplayer market prices via Scryfall.
When this creature enters, this creature assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)