Dune Mover is a common Artifact Creature — Phyrexian Golem card from Phyrexia: All Will Be One (ONE), collector number 226. Current market price: $0.28 (foil $0.28), TCGplayer market prices via Scryfall.
Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) When this creature enters, you may search your library for a basic land card, reveal it, then shuffle and put that card on top.