Activate Phyrexian Altar by sacrificing Squee, adding .
When Squee dies, Totentanz triggers, creating a creature token.
Activate Phyrexian Altar by sacrificing the creature token, adding .
Cast Squee from your graveyard by paying due to Green Goblin.
Repeat.
This clever loop harnesses the unyielding nature of Squee, the Immortal to generate infinite sacrifices, letting you loop him endlessly through Phyrexian Altar. While Phyrexian Altar provides the mana and a dedicated sacrifice outlet, Totentanz, Swarm Piper ensures you leave behind a trail of Rat tokens with every trip to the graveyard. The true engine that makes this mana-positive is the transformed backside of Norman Osborn // Green Goblin, whose Goblin Formula and cost reduction allow Squee to be recast cheaply right back from the graveyard.