Trigon of Rage is a uncommon Artifact card from Scars of Mirrodin (SOM), collector number 216. Current market price: $0.07 (foil $0.20), TCGplayer market prices via Scryfall.
This artifact enters with three charge counters on it. {R}{R}, {T}: Put a charge counter on this artifact. {2}, {T}, Remove a charge counter from this artifact: Target creature gets +3/+0 until end of turn.