Requires

Patron of the Arts must be on the battlefield. Enduring Renewal must be on the battlefield. Phyrexian Altar must be on the battlefield. Mana needed:

Steps

1. Activate Phyrexian Altar by sacrificing Patron of the Arts, adding .
2. Patron of the Arts dies, triggering itself and Enduring Renewal.
3. Resolve the Patron of the Arts trigger, creating a Treasure token.
4. Resolve the Enduring Renewal trigger, returning Patron of the Arts from your graveyard to your hand.
5. Activate the Treasure by tapping and sacrificing it, adding .
6. Cast Patron of the Arts by paying .
7. Patron of the Arts enters the battlefield, creating a Treasure token.
8. Activate the Treasure by tapping and sacrificing it, adding .
9. Repeat.

Results