Activate Chained Brute by tapping it, creating four 1/1 Elemental creature tokens with haste.
Activate Ashnod's Altar by sacrificing an Elemental, adding {C}{C}.
Activate Chained Brute by paying {1} and sacrificing an Elemental, untapping Chained Brute.
Repeat.

Infinite creature ETB

Infinite creature LTB

Infinite colorless mana

Infinite creature tokens with haste

Infinite death triggers

Infinite creature sacrifice triggers

Elemental Mastery

Chained Brute

Ashnod's Altar

Activate Chained Brute by tapping it, creating four 1/1 Elemental creature tokens with haste.
Activate Thermopod's second ability by sacrificing an Elemental, adding {R}.
Activate Chained Brute by paying {1} and sacrificing an Elemental, untapping Chained Brute.
Repeat.

Infinite red mana

Thermopod

Activate Chained Brute by tapping it, creating four 1/1 Elemental creature tokens with haste.
The Elementals enter the battlefield, triggering Mana Echoes four times, adding {C}{C}{C}{C} for each Elemental you control.
Activate Chained Brute by paying {1} and sacrificing an Elemental, untapping Chained Brute.
Repeat.

Mana Echoes

Activate Chained Brute by tapping it, creating four 1/1 Elemental creature tokens with haste.
Activate Phyrexian Altar by sacrificing an Elemental, adding {1}.
Activate Chained Brute by paying {1} and sacrificing an Elemental, untapping Chained Brute.
Repeat.

Combos with "Chained Brute"