Enduring Renewal + Ashnod's Altar + Earthcraft + Liberated Livestock

Enduring Renewal

Ashnod's Altar

Earthcraft

Liberated Livestock

How it works

1. Activate Earthcraft by tapping Liberated Livestock, untapping a basic Plains you control.
2. Activate the Plains by tapping it, adding .
3. Activate Ashnod's Altar by sacrificing Liberated Livestock, adding CC.
4. When Liberated Livestock dies, it and Enduring Renewal trigger.
5. Resolve the Liberated Livestock trigger, creating a 1/1 Cat, a 1/1 Bird, and a 2/4 Ox creature token.
6. Resolve the Enduring Renewal trigger, returning Liberated Livestock to your hand from your graveyard.
7. Activate Ashnod's Altar twice by sacrificing two of the creature tokens, adding CCCC.
8. Cast Liberated Livestock by paying 5.
9. Repeat.

This intricate loop turns the heavy cost of Liberated Livestock into a self-sustaining engine, utilizing Enduring Renewal's replacement effect to instantly bounce the beast back to your hand whenever it hits the graveyard. Ashnod's Altar provides the initial sacrifice outlet to generate colorless mana while feeding the graveyard, and Earthcraft cleverly squeezes extra utility out of your board by letting you tap the Livestock to untap a basic land for mana before it goes. Every iteration leaves you with a growing army of Cat, Bird, and Ox tokens that can either be cashed in to the Altar for even more mana or used to fuel Earthcraft further, creating an unstoppable cascade of resources.