Ozox, the Clattering King + Phyrexian Altar + Blight Mound

Ozox, the Clattering King

Phyrexian Altar

Blight Mound

How it works

1. Activate Phyrexian Altar by sacrificing Ozox, adding 1.
2. When Ozox dies, it and Blight Mound trigger.
3. Resolve the Ozox trigger, creating a legendary 2/1 Jumblebones creature token.
4. Resolve the Blight Mound trigger, creating a 1/1 Pest creature token.
5. Activate Phyrexian Altar twice by sacrificing Jumblebones and the Pest, adding 1.
6. When Jumblebones and the Pest die, they trigger.
7. Resolve the Jumblejones trigger, returning Ozox from your graveyard to your hand.
8. Resolve the Pest trigger, causing you to gain 1 life.
9. Cast Ozox by paying 2.
10. Repeat.