Toph, the First Metalbender, Overburden, and Ornithopter

Prerequisites

• Toph, the First Metalbender on the battlefield
• Overburden on the battlefield
• Ornithopter on the battlefield

Steps

1. Cast Ornithopter by paying
2. When Ornithopter enters, Overburden triggers, causing you to return Ornithopter from the battlefield to your hand, as it's a land due to Toph
3. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count
• Infinite landfall triggers