Aeon Engine, Master Transmuter, Unwinding Clock, and Mirrorworks

Prerequisites

• Aeon Engine in hand
• Master Transmuter on the battlefield
• Unwinding Clock on the battlefield
• Mirrorworks on the battlefield
• available

Steps

1. Cast Aeon Engine by paying
2. Aeon Engine enters the battlefield, triggering Mirrorworks, causing you to pay to create a copy of Aeon Engine
3. Activate Master Transmuter by paying and tapping it, returning Aeon Engine to your hand
4. Pass the turn
5. Untap all permanents you control during each opponent's untap step due to Unwinding Clock
6. Activate the token copy of Aeon Engine by tapping and exiling it, reversing the game order
7. On your turn, repeat from step 1

Results

• Lock
• Locks out all of your opponents but one, and allows you to choose which of your two neighboring opponents get to have turns