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A deck built around rapidfire Lux Cannons. Because if you can't solve a problem using violence, then you're clearly not using enough.
Begin by ramping via Palladium Myr or Plague Myr. The idea of this deck is to get Mirrorworks onto the battlefield and then drop something amazing, like Lux Cannon or Lodestone Golem, paying to duplicate it. If you can't, Prototype Portal works nicely as a pseudo-mirrorworks, but it's a little more vulnerable and nowhere near as fast. If you find yourself in a pinch, Solumn Simulacrum is a good card to hold the field while you try to organize yourself. Stick him in a portal to quickly achieve domain, and/or draw all the cards your opponent will let you. Once you finally have your Lux Cannon/Battlesphere/Lodestone Golem on the field (and a mirrorworks, preferably!), begin playing your Sculpting Steels and Phyrexian Metamorphs. One Lodestone Golem is manageable. Two are fearsome. Four are game-winning. Finally, Bringer of the White Dawn serves as a reiterator for all the cards your opponent has been desperately trying to dispose of. It can also bring your Coretappers back for another pop. Play him for his alternate cost to mitigate the damage to yourself from Lodestone.
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