Umbral Collar Zealot + Dualcaster Mage + Incarnation Technique

Umbral Collar Zealot

Dualcaster Mage

Incarnation Technique

How it works

1. Cast Incarnation Technique by paying its mana cost, targeting any applicable target.
2. Holding priority, cast Dualcaster Mage by paying its mana cost.
3. When Dualcaster Mage enters, it triggers, targeting Incarnation Technique.
4. Holding priority, activate Umbral Collar Zealot by sacrificing Dualcaster Mage.
5. Resolve the Dualcaster Mage trigger, copying Incarnation Technique, with the copy targeting Dualcaster Mage
6. Resolve the Incarnation Technique copy, returning Dualcaster Mage from your graveyard to the battlefield.
7. Repeat from step 3.

This clever loop relies on the recursive interplay between Incarnation Technique and Dualcaster Mage to generate infinite value. When you cast Incarnation Technique, Dualcaster Mage copies it upon entry, allowing you to continually resurrect the Mage from your graveyard using the copy while holding the original spell in reserve. Meanwhile, Umbral Collar Zealot serves as the sacrificial outlet that feeds this engine, letting you bin Dualcaster Mage to its ability while simultaneously filtering your library with infinite surveil triggers.