Infinite combat damageInfinite combat phasesInfinite creature tokensInfinite death triggersInfinite creature ETBInfinite creature LTBInfinite mana creatures you control can produceInfinite red manaInfinite creature sacrifice triggersInfinite untap of creatures you control
How it works
Deal combat damage with Dune-Brood Nephilim.
Dune-Brood Nephilim triggers, creating a 1/1 Sand creature token for each land you control.
Proceed to your postcombat main phase.
Activate Thermopod's second ability by sacrificing five Sand tokens, adding 3.
Activate Aggravated Assault by paying 3, untapping all creatures you control and getting an additional combat phase and main phase after this phase.