Skip the $20+ cards (Thrumming Stone, Coat of Arms, Cover of Darkness) and the deck still hums: Commander: Karumonix, the Rat King (~$1) Engines: Pack Rat (~$3.30), Piper of the Swarm (~$3), Ogre Slumlord (~$0.45), a couple of Relentless Rats / Rat Colony (~$56 each cap the copies to stay on budget) Payoffs/utility: Crypt Rats (~$0.50), Nezumi Bone-Reader (~$0.40), Bontu the Glorified (~$3) as a sac outlet, Throne of the God-Pharaoh only if budget allows The rest: cheap black removal, Swamps, and a Sol Ring The whole list comes in well under $50, and it scales up gracefully add Marrow-Gnawer and Thrumming Stone later and the same shell jumps several power levels
At the highest sale price of $500 (if you are lucky enough to catch this collectible at a discount), this Darkrai-EX is an absolute steal
Holographic Pokemon cards are often quite valuable
Designers have also worked to introduce the format to new players with Commander Legends, the first Commander set meant to be drafted
Keep in mind that it does not have an activated effect you can use on your turn
When using Avacyn, nearly every board wipe becomes a one-sided affair, and quickly tilts the nature of the game into your favor