Sozin's Comet, Aggravated Assault, and The Last Agni Kai

Prerequisites

• Sozin's Comet in hand or in exile
• Aggravated Assault on the battlefield
• The Last Agni Kai in hand
• at most available

Steps

1. Cast The Last Agni Kai by paying
2. Cast Sozin's Comet either from your hand by paying or from exile for its foretell cost by paying
3. Declare a creature as an attacker, triggering its firebending ability, adding
4. Move to your postcombat main phase
5. You will not lose the mana due to The Last Agni Kai
6. Activate Aggravated Assault by paying , causing you to untap all creatures you control and to get an additional combat and main phase after this one
7. Repeat from step 3

Results

• Infinite combat phases
• Infinite red mana
• Infinite untap of creatures you control
• Infinite mana creatures you control can produce