Simulacrum Synthesizer is a mythic Artifact card from The Big Score (BIG), collector number 6. Current market price: $25.64 (foil $30.78), TCGplayer market prices via Scryfall.
When this artifact enters, scry 2. Whenever another artifact you control with mana value 3 or greater enters, create a 0/0 colorless Construct artifact creature token with "This token gets +1/+1 for each artifact you control."