Found Footage is a common Artifact — Clue card from Duskmourn: House of Horror (DSK), collector number 246. Current market price: $0.17 (foil $0.17), TCGplayer market prices via Scryfall.
You may look at face-down creatures your opponents control any time. {2}, Sacrifice this artifact: Surveil 2, then draw a card. (To surveil 2, look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)