Dualcaster Mage + Ezzaroot Channeler + Airbender's Reversal

Dualcaster Mage

Ezzaroot Channeler

Airbender's Reversal

How it works

1. Cast Airbender's Reversal by paying its mana cost, targeting any applicable target(s).
2. Holding priority, cast Dualcaster Mage by paying its mana cost reduced by Ezzaroot Channeler.
3. When Dualcaster Mage enters, it triggers, copying Airbender's Reversal targeting Dualcaster Mage.
4. Resolve Airbender's Reversal, airbending Dualcaster Mage.
5. Holding priority, cast Dualcaster Mage from exile by paying 0 due to Ezzaroot Channeler.
6. Repeat from step 3.