Churning out tens of treasures each turn, Ancient Copper Dragon works with all the usual treasure tricks: token, artifact, and sacrifice synergies, plus it provides all the spare mana you could ever need
I also like this with two Commanders with partner, if they are mixing it up in the red zone with the attacks
Illustrator: Anesaki Dynamic Unown #85 Unown (3-Diamonds, Rare rarity) is the #85/241 card from the Wisdom of Sea and Sky set in Pokmon TCG Pocket
All of these cards see play in some capacity across different formats, and there are some big value hits with Sword of Truth and Justice (~$30) and Umezawa's Jitte (~$10)
Pair it with discard or self-mill effects like Cathartic Reunion to make it easy to bring it back while you fuel constant aerial attacks
Krenko, Mob Boss is the best card in any Purphoros deck