Requires

Antler Skulkin must be on the battlefield. Solemnity must be on the battlefield. Genesis Chamber must be on the battlefield. Phyrexian Altar must be on the battlefield. You control a white creature. Mana needed:

Steps

1. Activate Antler Skulkin by paying , giving target white creature you control persist.
2. Activate Phyrexian Altar by sacrificing the persist creature, adding one mana of any color.
3. The creature's persist ability triggers, returning it to the battlefield.
4. Genesis Chamber triggers, creating a 1/1 Myr creature token.
5. Activate Phyrexian Altar by sacrificing the Myr token, adding one mana of any color.
6. Repeat.

Results