Silver Deputy is a common Artifact Creature — Mercenary card from Outlaws of Thunder Junction (OTJ), collector number 248. Current market price: $0.17 (foil $0.24), TCGplayer market prices via Scryfall.
When this creature enters, you may search your library for a basic land card or a Desert card, reveal it, then shuffle and put it on top. {T}: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery.