Orzhov Locket is a common Artifact card from Ravnica Allegiance (RNA), collector number 236. Current market price: $0.18 (foil $0.65), TCGplayer market prices via Scryfall.
{T}: Add {W} or {B}. {W/B}{W/B}{W/B}{W/B}, {T}, Sacrifice this artifact: Draw two cards.