Akumas

An Akuma is a mortal or Exalt who has been granted a measure of power by a Yozi, but essentially becomes a puppet of that Primordial, devoid of free will. While this sounds like a horrible trade, the Yozi are very convincing even when they aren't just lying about it and some people are incredibly power-hungry. The first Akuma was a Solar Exalted, and the Yozi eagerly seek to turn more Exalted into Akuma. The Green Sun Princes (read: Infernal Exalted), the 50 Solar Shards altered by the Yozis, are not Akuma, though there are enough similarities that the two frequently get confused.