Phyrexian Altar + Dualcaster Mage + Prison Break

Phyrexian Altar

Dualcaster Mage

Prison Break

How it works

1. Cast Prison Break either from your hand by paying 4 or from your graveyard for its mayhem cost by paying 3, targeting any applicable target.
2. Holding priority, cast Dualcaster Mage by paying its mana cost.
3. When Dualcaster Mage enters, it triggers, targeting Prison Break.
4. Holding priority, activate Phyrexian Altar by sacrificing Dualcaster Mage.
5. Resolve the Dualcaster Mage trigger, copying Prison Break, with the copy targeting Dualcaster Mage
6. Resolve the Prison Break copy, returning Dualcaster Mage from your graveyard to the battlefield.
7. Repeat from step 3.