Orzhova is a common Plane — Ravnica card from Planechase Anthology Planes (OPCA), collector number 60. Current market price: $3.09, TCGplayer market prices via Scryfall.
When you planeswalk away from Orzhova, each player returns all creature cards from their graveyard to the battlefield. Whenever chaos ensues, for each opponent, exile up to one target creature card from that player's graveyard.