Invasion of Amonkhet // Lazotep Convert

The battle mechanic's central bet is that a permanent worth attacking should also be worth casting, and this one leans on both halves harder than most. A symmetrical mill-three sits attached to an asymmetrical edict-of-value: everyone loses three off the top, but only your opponents pitch a card while you draw. That symmetry is the whole point, because the mill isn't damage, it's ammunition. Filling every graveyard is exactly what the back half wants. Lazotep Convert reaches into any graveyard and enters as a copy of a creature there, gaining a 4/4 black Zombie chassis on top of whatever it copied. The Siege loads the fuel, then the transform hands you a reanimation payload built from the wreckage. What makes the piece cohere is that the two faces aren't independent value engines stapled together: the mill you paid for on the way in is what stocks the yards the Convert then raids, and because the way you defeat the battle is by attacking it yourself, the reward is gated behind committing to combat rather than simply resolving a spell. You choose an opponent to protect the Siege, so the payoff is a small race: grow the pool of copyable creatures, then break through the defender to collect. It's a self-contained loop where the setup cost and the payoff share the same resource, which is a cleaner expression of the battle design than the mechanic usually manages.