Solemn Simulacrum is a rare Artifact Creature — Golem card from Mirrodin (MRD), collector number 245. Current market price: $1.53 (foil $24.20), TCGplayer market prices via Scryfall.
When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.