Cast Squee from your graveyard or from exile by paying {R}{R}.
Iraxxa triggers, creating a 2/2 Alien Warrior creature token.
Activate Thermopod's second ability twice by sacrificing Squee and the Alien Warrior, adding {R}{R}.
Repeat.

Infinite LTB

Infinite ETB

Infinite sacrifice triggers

Infinite death triggers

Infinite storm count

Iraxxa, Empress of Mars

Squee, the Immortal

Thermopod

Thornscape Familiar

Cast Whitemane Lion by paying {W}.
Spider-Man India triggers, putting a +1/+1 counter on Crystalline Crawler.
When Whitemane Lion enters, it triggers, returning itself from the battlefield to your hand.
Activate Crystalline Crawler by removing a +1/+1 counter from it, adding {W}.
Repeat.

Spider-Man India

Crystalline Crawler

Whitemane Lion

Activate Thermopod by sacrificing Squee and Skyfire Phoenix, adding {R}{R}.
Cast Squee from your graveyard by paying {R}{R}.
Skyfire Phoenix triggers, returning it from your graveyard to the battlefield.
Repeat.

Skyfire Phoenix

Cast Squee from your graveyard or from exile by paying {R}{R}.
Iraxxa triggers, creating a 2/2 Alien Warrior creature token.
Activate Phyrexian Altar twice by sacrificing Squee and the Alien Warrior, adding {R}{R}.
Repeat.

Combos with "Thornscape Familiar"