Declare Hellkite Charger and Sun Warriors as attackers, triggering each of their abilities.
Resolve the Sun Warrior trigger, adding {R} for each creature you control.
Resolve the Hellkite Charger trigger, causing you to pay {5}{R}{R} to untap all attacking creatures and to get an additional combat phase after this one.
Repeat each combat phase.

Infinite combat phases

Infinite red mana

Hellkite Charger

Sun Warriors

Declare Sun Warriors as an attacker, triggering its ability, adding an amount of {R} equal to the number of creatures you control.
Move to your postcombat main phase. You will not lose the mana due to Ozai.
Activate Aggravated Assault by paying {3}{R}{R}, causing you to untap all creatures you control and to get an additional combat and main phase after this one.
Repeat.

Infinite creature ETB

Infinite creature tokens

Infinite untap of creatures you control

Infinite mana creatures you control can produce

Aggravated Assault

Ozai, the Phoenix King

Declare Sun Warriors as an attacker, triggering its ability, adding an amount of {R} equal to the number of creatures you control.
Move to your postcombat main phase. You will not lose the mana due to Leyline Tyrant.
Activate Aggravated Assault by paying {3}{R}{R}, causing you to untap all creatures you control and to get an additional combat and main phase after this one.
Repeat.

Infinite damage to one opponent

Leyline Tyrant

Declare Sun Warriors as an attacker, triggering its ability, adding an amount of {R} equal to the number of creatures you control.
Move to your postcombat main phase. You will not lose the mana due to Electro.
Activate Aggravated Assault by paying {3}{R}{R}, causing you to untap all creatures you control and to get an additional combat and main phase after this one.
Repeat.

Electro, Assaulting Battery

Cast The Last Agni Kai by paying {1}{R}.
Declare Sun Warriors as an attacker, triggering its ability, adding an amount of {R} equal to the number of creatures you control.
Move to your postcombat main phase. You will not lose the mana due to The Last Agni Kai.
Activate Aggravated Assault by paying {3}{R}{R}, causing you to untap all creatures you control and to get an additional combat and main phase after this one.
Repeat from step 2.

The Last Agni Kai

Declare Sun Warriors as an attacker, triggering its ability, adding an amount of {R} equal to the number of creatures you control.
Move to your postcombat main phase. You will not lose the mana due to Ashling.
Activate Aggravated Assault by paying {3}{R}{R}, causing you to untap all creatures you control and to get an additional combat and main phase after this one.
Repeat.

Ashling, Flame Dancer

Declare Sun Warriors as an attacker, triggering its ability, adding an amount of {R} equal to the number of creatures you control.
Move to your postcombat main phase. You will not lose the mana due to Upwelling.
Activate Aggravated Assault by paying {3}{R}{R}, causing you to untap all creatures you control and to get an additional combat and main phase after this one.
Repeat.

Search Results