Doc Aurlock, Grizzled Genius, Appa, Steadfast Guardian, and Aang, the Last Airbender

Prerequisites

• Doc Aurlock, Grizzled Genius on the battlefield
• Appa, Steadfast Guardian on the battlefield
• Aang, the Last Airbender 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. Appa's second ability triggers, creating a 1/1 Ally creature token
7. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count
• Infinite creature tokens