Phyrexian Altar + Reincarnation + Dualcaster Mage

Phyrexian Altar

Reincarnation

Dualcaster Mage

How it works

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