Viscera Seer + Dualcaster Mage + Ascend from Avernus

Viscera Seer

Dualcaster Mage

Ascend from Avernus

How it works

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

This loop turns Ascend from Avernus and Dualcaster Mage into an endlessly repeating cycle of resurrection by having each new copy of the spell bring the Mage right back to the battlefield. Viscera Seer acts as the necessary sacrifice outlet to send the Mage back to the graveyard and keep the engine going, while simultaneously letting you sift through your entire library with infinite scry triggers. Together, these three cards feed an endless stream of entries, exits, and deaths, making it a potent finisher in formats like Commander and Legacy.