Ozox, the Clattering King + Phyrexian Altar + Open the Graves

Ozox, the Clattering King

Phyrexian Altar

Open the Graves

How it works

1. Activate Phyrexian Altar by sacrificing Ozox, adding 1.
2. When Ozox dies, it and Open the Graves trigger.
3. Resolve the Ozox trigger, creating a legendary 2/1 Jumblebones creature token.
4. Resolve the Open the Graves trigger, creating a creature token.
5. Activate Phyrexian Altar twice by sacrificing Jumblebones and the other creature token, adding 1.
6. When Jumblebones dies, it triggers, returning Ozox from your graveyard to your hand.
7. Cast Ozox by paying 2.
8. Repeat.

This clever loop turns the cycle of death and rebirth into a self-sustaining engine using Phyrexian Altar as your sacrifice outlet and mana source. When you sacrifice Ozox, the Clattering King to the Altar, Open the Graves steps in to reward the nontoken creature's demise by spitting out a Zombie token, while Ozox's own death trigger creates the legendary Jumblebones token. Sending Jumblebones to the Altar for a second mana triggers its leaves-the-battlefield ability, smoothly returning Ozox straight back to your hand so you can recast it and do it all over again.