Panoptic Projektor is a rare Artifact card from Murders at Karlov Manor Commander (MKC), collector number 44. Current market price: $0.65, TCGplayer market prices via Scryfall.
{T}: The next face-down creature spell you cast this turn costs {3} less to cast. If turning a face-down permanent face up causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.