Solemn Simulacrum is a rare Artifact Creature — Golem card from Duskmourn: House of Horror Commander (DSC), collector number 253. Current market price: $0.34, 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.