Gilded Scuttler is a common Artifact Creature — Crab card from Foundations Jumpstart (J25), collector number 7. Current market price: $0.34, TCGplayer market prices via Scryfall.
This creature can't be blocked. When this creature enters, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)