Darksteel Reactor + Eternity Vessel + March of the Machines + The Ozolith

Darksteel Reactor

Eternity Vessel

March of the Machines

The Ozolith

How it works

1. Cause Eternity Vessel to leave the battlefield.
2. The Ozolith triggers, putting a number of charge counters on itself equal to the charge counters that were on Eternity Vessel.
3. At the beginning of your combat phase, The Ozolith triggers, moving all counters from it onto Darksteel Reactor.
4. Darksteel Reactor triggers, causing you to win the game.

By turning all of your noncreature artifacts into artifact creatures via March of the Machines, you enable clever counter-transfers that bypass Darksteel Reactor's normally slow accumulation speed. When your high-counter Eternity Vessel leaves the battlefield, The Ozolith dutifully catches those charge counters before safely passing them along to Darksteel Reactor at the start of combat. Once Darksteel Reactor receives twenty or more of these accumulated charge counters, its alternate-win condition immediately triggers, closing out the game in spectacular fashion.