Doc Aurlock, Grizzled Genius, Aang, the Last Airbender, and Appa, Loyal Sky Bison

Prerequisites

• Doc Aurlock, Grizzled Genius on the battlefield
• Aang, the Last Airbender in hand
• Appa, Loyal Sky Bison in hand
• available

Steps

1. Cast Aang by paying its mana cost
2. When Aang enters, it triggers, airbending Appa
3. Cast Appa from exile by paying due to Doc Aurlock
4. When Appa enters, it triggers, airbending Aang
5. Cast Aang from exile by paying due to Doc Aurlock
6. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count