Sozin's Comet + Aggravated Assault + Upwelling

Prerequisites

• You control a creature that can attack this turn and that cannot be blocked or killed by an opponent.

Steps

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

Effects

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