Thermopod + Dualcaster Mage + Extract from Darkness

Thermopod

Dualcaster Mage

Extract from Darkness

How it works

1. Cast Extract from Darkness by paying its mana cost
2. Holding priority, cast Dualcaster Mage by paying its mana cost.
3. When Dualcaster Mage enters, it triggers, targeting Extract from Darkness.
4. Holding priority, activate Thermopod by sacrificing Dualcaster Mage.
5. Resolve the Dualcaster Mage trigger, copying Extract from Darkness
6. Resolve the Extract from Darkness copy, causing each player to mill two cards and returning Dualcaster Mage from your graveyard to the battlefield.
7. Repeat from step 3.

This clever loop turns a simple recursion spell into a self-sustaining engine by letting Dualcaster Mage endlessly duplicate its own catalyst. When you cast Extract from Darkness, you immediately respond with Dualcaster Mage so its entry trigger can copy the original spell. Before that copy resolves, you feed the Wizard to Thermopod's sacrifice ability to harvest a red mana and send the Mage straight to the graveyard. From there, the resolved Extract from Darkness copy mills your library and plucks Dualcaster Mage right back onto the battlefield to start the whole cycle anew.