when an Os Xen dies, their soul splits into two parts: The Ot Pic (Truth), and the Om Sek (Ideal). Only one half of their soul can be active at a time, whichever was stronger to the Os Xen becomes active after their death, leading to either an Ot Pic or Om Sek being born shortly after their demise.

If you kill the Ot Pic or Om Sek version, then their counterpart soul will become active and fill the void. Ot Pics are usually heavily magic and knowledge focused, while Om Seks are the Os Xen's ideals cranked to 11, usually focusing on self-improvement and are physically strong.