Solemn Simulacrum is a rare Artifact Creature — Golem card from Secret Lair Drop (SLD), collector number 1113. Current market price: $18.90 (foil $23.73), 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.