Pyre of Heroes is a rare Artifact card from Kaldheim Promos (PKHM), collector number 241p. Current market price: $2.36 (foil $2.55), TCGplayer market prices via Scryfall.
{2}, {T}, Sacrifice a creature: Search your library for a creature card that shares a creature type with the sacrificed creature and has mana value equal to 1 plus that creature's mana value. Put that card onto the battlefield, then shuffle. Activate only as a sorcery.