Toph, the First Metalbender, Aeon Engine, Wilderness Reclamation, and Ba Sing Se

Prerequisites

• Toph, the First Metalbender on the battlefield
• Aeon Engine on the battlefield
• Wilderness Reclamation on the battlefield
• Ba Sing Se on the battlefield
• each turn available

Steps

1. Activate Ba Sing Se's second ability by paying and tapping it, earthbending Aeon Engine, as it's a land due to Toph
2. Activate Aeon Engine by tapping and exiling it
3. Ba Sing Se triggers, returning Aeon Engine from exile to the battlefield
4. Resolve the Aeon Engine ability, reversing the turn order
5. At the beginning of your end step, Toph and Wilderness Reclamation trigger
6. Resolve the Toph trigger, earthbending Aeon Engine
7. Resolve the Wilderness Reclamation trigger, untapping all lands you control
8. Pass the turn to an opponent
9. During the opponent's turn, activate Aeon Engine by tapping and exiling it
10. Toph triggers, returning Aeon Engine from exile to the battlefield
11. Resolve the Aeon Engine ability, reversing the turn order
12. Repeat during your next turn

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