Wight of the Reliquary is a rare Creature — Zombie Knight card from Modern Horizons 3 (MH3), collector number 460. Current market price: $2.76 (foil $5.79), TCGplayer market prices via Scryfall.
Vigilance This creature gets +1/+1 for each creature card in your graveyard. {T}, Sacrifice another creature: Search your library for a land card, put it onto the battlefield tapped, then shuffle.