Thermopod + Dualcaster Mage + Behold the Sinister Six!

Thermopod

Dualcaster Mage

Behold the Sinister Six!

How it works

1. Cast Behold the Sinister Six! by paying its mana cost
2. Holding priority, cast Dualcaster Mage by paying its mana cost.
3. When Dualcaster Mage enters, it triggers, targeting Behold the Sinister Six!.
4. Holding priority, activate Thermopod by sacrificing Dualcaster Mage.
5. Resolve the Dualcaster Mage trigger, copying Behold the Sinister Six!, with the copy targeting Dualcaster Mage
6. Resolve the Behold the Sinister Six! copy, returning Dualcaster Mage from your graveyard to the battlefield.
7. Repeat from step 3.

This loop transforms the massive resurrection power of Behold the Sinister Six! into an endless cycle by bringing back the very card that keeps the chain alive. When you cast Dualcaster Mage, its enter-the-battlefield trigger targets the original sorcery, copying it to fetch the Mage right back out of your graveyard. Thermopod serves as the crucial engine here, letting you sacrifice the returning Dualcaster Mage for red mana to pay for subsequent spells while simultaneously enabling the loop's infinite sacrifices. Because Behold the Sinister Six! pulls back up to six creatures with different names, you aren't just stuck looping a single interaction—you have an entire board's worth of resurrection potential fueling your deaths, magecraft, and mana pools.