Glittering Stockpile is a uncommon Artifact — Treasure card from Outlaws of Thunder Junction Commander (OTC), collector number 167. Current market price: $0.42, 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.