Altar of Dementia + Dualcaster Mage + Dread Return

Altar of Dementia

Dualcaster Mage

Dread Return

How it works

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