Prototype X-8

Prototype X-8 is a self-mill payoff commander that wants to fill your graveyard early, then use that setup to cast X-8 cheaply and start generating duplicates of creatures you cast. The core gameplan is simple: mill yourself with cards like Stitcher's Supplier and Satyr Wayfinder, then ramp into X-8 by turn 4–5. Once it's in play, every creature you cast gets duplicated, creating an army of artifact tokens that can attack or provide additional value. The duplicates stick around permanently, so you're essentially doubling your creature output every turn.

You'll win through combat damage by overwhelming the table with tokens, or by combining the duplicate tokens with cards like Impact Tremors or Blood Artist for alternative damage. Since the tokens are artifacts, you can also lean into artifact synergies like Mechanized Production for an alt-win condition. The deck is grindy but explosive—early self-mill sets you up for a mid-game turn where X-8 enters and you start generating value that's hard for opponents to race or block.

The hardest part is managing your graveyard strategically so you always have enough cards to mill but still play the creatures you want duplicated. Include disruption and removal to buy time, and don't sleep on cards that recur from the graveyard to double dip on the duplicate effect.

Strategy generated by Tapped Decks AI. Not affiliated with Wizards of the Coast.