Glittering Stockpile is a uncommon Artifact — Treasure card from Streets of New Capenna (SNC), collector number 107. Current market price: $0.35 (foil $0.70), TCGplayer market prices via Scryfall.
{T}: Add {R}. Put a stash counter on this artifact. {T}, Sacrifice this artifact: Add X mana of any one color, where X is the number of stash counters on this artifact.