Hoard-Smelter Dragon [Scars of Mirrodin] SV020 Set: Commander 2021 Type: Artifact

Set: Commander 2021 Type: Artifact Rarity: Rare Cost: {3} Whenever you cast a spell with {X} in its mana cost

Set: Prize Pack Series Two Type: Supporter Rarity: Holo Rare

Semifinalist— Antoine Ruel's blue-black-red control deck survived the pressure in the early game with its almost overwhelming card-drawing capability

or searches their library

Set: Platinum: Rising Rivals Type: Lightning Rarity: Uncommon Retreat cost: Colorless

Hoard-Smelter Dragon [Scars of Mirrodin] SV020 Set: Commander 2021 Type: ArtifactSet: Scars of Mirrodin Type: Creature Dragon Rarity: Rare Cost: {4}{R}{R} Flying {3}{R}: Destroy target artifact. Hoard Smelter Dragon gets +X +0 until end of turn, where X is that artifact's mana value. He collects the precious metals, and then converts the rest to propellant.