Idol of Endurance is a rare Artifact card from Core Set 2021 Promos (PM21), collector number 23s. Current market price: — (foil $0.56), TCGplayer market prices via Scryfall.
When this artifact enters, exile all creature cards with mana value 3 or less from your graveyard until this artifact leaves the battlefield. {1}{W}, {T}: Until end of turn, you may cast a creature spell from among cards exiled with this artifact without paying its mana cost.