Dualcaster Mage + Bloodflow Connoisseur + Dread Return

Dualcaster Mage

Bloodflow Connoisseur

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 Bloodflow Connoisseur 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.