Activate Ashnod's Altar twice by sacrificing Poxwalkers and Squee, adding {C}{C}{C}{C}.
Pitiless Plunderer triggers twice, creating two Treasure tokens.
Activate the two Treasure tokens by tapping and sacrificing them, adding {R}{R}.
Cast Squee from your graveyard by paying {1}{R}{R}.
Poxwalkers triggers, returning itself from your graveyard to the battlefield.
Repeat.

Infinite colorless mana

Infinite death triggers

Infinite creature ETB

Infinite creature LTB

Infinite creature sacrifice triggers

Infinite storm count

Squee, the Immortal

Poxwalkers

Pitiless Plunderer

Ashnod's Altar

Activate Phyrexian Altar twice by sacrificing Poxwalkers and Squee, adding {R}{R}.
Pitiless Plunderer triggers twice, creating two Treasure tokens.
Activate a Treasure token by tapping and sacrificing it, adding {1}.
Cast Squee from your graveyard by paying {1}{R}{R}.
Poxwalkers triggers, returning itself from your graveyard to the battlefield.
Repeat.

Infinite artifact ETB

Infinite artifact LTB

Infinite artifact sacrifice triggers

Infinite artifact tokens

Infinite colored mana

Infinite Treasure tokens

Phyrexian Altar

Activate Phyrexian Altar twice by sacrificing Poxwalkers and Oathsworn Vampire, adding {1}{B}.
Cast Oathsworn Vampire from your graveyard by paying {1}{B}.
Poxwalkers triggers, returning itself from your graveyard to the battlefield.
Repeat.

Oathsworn Vampire

Activate Phyrexian Altar twice by sacrificing Poxwalkers and Eternal Scourge, adding {1}{B/G}.
Activate Lluwen by exiling Eternal Scourge from your graveyard, causing Lluwen to become prepared.
Cast a copy of Pest Friend by paying {B/G}.
Poxwalkers triggers, returning it from your graveyard to the battlefield.
Resolve Pest Friend, creating a 1/1 Pest creature token.
Activate Phyrexian Altar twice by sacrificing Poxwalkers and the Pest, adding {2}.
Cast Eternal Scourge from exile by paying {3}.
Repeat.

Infinite magecraft triggers

Lluwen, Exchange Student // Pest Friend

Eternal Scourge

Combos with "Poxwalkers"