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.

Infinite creature LTB

Infinite creature ETB

Infinite creature sacrifice triggers

Infinite death triggers

Infinite storm count

Iraxxa, Empress of Mars

Squee, the Immortal

Phyrexian Altar

Goblin Anarchomancer

Cast a copy of Seething Song from exile by paying no more than {1}{R}, adding {R}{R}{R}{R}{R}.
Activate Emiel the Blessed by paying {3}, blinking Blazing Firesinger, which enters prepared.
Repeat.

Infinite magecraft triggers

Blazing Firesinger // Seething Song

Emiel the Blessed

Activate Kiki-Jiki by tapping it, copying Blazing Firesinger. It'll enter prepared due to its effect.
Cast a copy of Seething Song by paying {1}{R} due to Goblin Anarchomancer.
Hematite Talisman triggers, causing you to pay {3} to untap Kiki-Jiki.
Resolve Seething Song, adding {R}{R}{R}{R}{R}.
Repeat.

Infinite creature tokens with haste

Kiki-Jiki, Mirror Breaker

Hematite Talisman

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.

Thermopod

Combos with "Goblin Anarchomancer"