Enduring Renewal + Crystalline Crawler + Sunbond + Kokusho, the Evening Star + Phyrexian Altar

Enduring Renewal

Crystalline Crawler

Sunbond

Kokusho, the Evening Star

Phyrexian Altar

How it works

1. Cast Kokusho by paying 4.
2. Activate Phyrexian Altar by sacrificing Kokusho, adding .
3. When Kokusho dies, it and Enduring Renewal trigger.
4. Resolve the Enduring Renewal trigger, returning Kokusho from your graveyard to your hand.
5. Resolve the Kokusho trigger, causing each opponent to lose 5 life and you to gain life equal to the life lost this way.
6. Crystalline Crawler triggers, putting a number of +1/+1 counters on it equal to the life you gained.
7. Activate Crystalline Crawler's first ability five times by removing five +1/+1 counters from it, adding 4.
8. Repeat.

This intricate loop turns the cycle of life and death into an unstoppable engine, anchored by Enduring Renewal to ensure your fallen threats always return safely to your hand rather than staying in the graveyard. You feed Kokusho, the Evening Star into Phyrexian Altar to generate initial mana while triggering the dragon's devastating drain, which simultaneously pumps Crystalline Crawler full of energy thanks to the life-linking power of Sunbond. You can then strip those accumulated +1/+1 counters right back off Crystalline Crawler to generate the exact mana needed to recast Kokusho, sustaining the loop indefinitely until every opponent has fallen to the drain.