Caravan Vigil is a common Sorcery card from Innistrad (ISD), collector number 173. Current market price: $0.18 (foil $1.97), TCGplayer market prices via Scryfall.
Search your library for a basic land card, reveal it, put it into your hand, then shuffle. Morbid — You may put that card onto the battlefield instead of putting it into your hand if a creature died this turn.