Yawgmoth, Thran Physician + Enduring Renewal + Edgewalker + Cathedral Sanctifier

Yawgmoth, Thran Physician

Enduring Renewal

Edgewalker

Cathedral Sanctifier

How it works

1. Activate Yawgmoth by paying 1 life and sacrificing Cathedral Sanctifier.
2. When Cathedral Sanctifier dies, Enduring Renewal triggers, returning Cathedral Sanctifier from your graveyard to your hand.
3. Resolve Yawgmoth's ability from step 1, causing you to draw a card.
4. Cast Cathedral Sanctifier by paying 0.
5. When Cathedral Sanctifier enters the battlefield, it triggers, causing you to gain 3 life.
6. Repeat until you've drawn a sufficient number of cards.
7. Activate Yawgmoth by paying 1 life and sacrificing Cathedral Sanctifier, targeting Cathedral Sanctifier.
8. When Cathedral Sanctifier dies, Enduring Renewal triggers, returning Cathedral Sanctifier from your graveyard to your hand.
9. Yawgmoth's ability from step 6 fizzles due to having no legal targets.
10. Cast Cathedral Sanctifier by paying 0.
11. When Cathedral Sanctifier enters the battlefield, it triggers, causing you to gain 3 life.
12. Repeat from step 6.

This clever loop transforms Yawgmoth, Thran Physician into a relentless engine by utilizing Enduring Renewal to instantly bounce sacrificed creatures right back to your hand. Because Cathedral Sanctifier costs a single white mana, the presence of Edgewalker reduces its mana cost down to zero, letting you recast it infinitely without ever running out of resources. Every iteration of this cycle completely offsets Yawgmoth's life payment thanks to the Cathedral Sanctifier's own entry trigger, allowing you to draw through your entire deck, generate massive storm counts, and stockpile every noncreature card from your library with absolute safety.