Just be careful not to get too creative for your own goodthese slots still need to be functional
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
In the first half of 2021, it grossed $110 million, making it the top-grossing card battler mobile game during the period
UR Ultra Rare UL Ultimate Rare Thunder End Dragon X LIGHT Rank 8 [ DragonXyzEffect ] ATK 3000 DEF 2000 2 Level 8 Normal Monsters Once per turn: You can detach 1 Xyz Material from this card
