Joyon

Orion aspires to become a Templar Conjurer, but he failed his awakening magic countless times. When he almost gave up becoming a conjurer, he discovered the hidden memories of his former life that is slowly returning to him. 
With the awakening of powerful soul magic that was brought over from his rebirth, and the memories from an advanced civilization of technology and science, Orion finally awakens his templar magic and began an adventure that would make crown him King and he would become the strongest power in this world, and the known universe.

Revelations @end of the world

"I would tell you later now that you become my disciple. I am Emezen your mistress and teacher", Mistress Emezen told me.

My artifact face was the strange and unique magic of the Kishurra temple, and it was impossible for someone to tell that I was wearing another's face.

Even Apostles would not be able to find out about my real face unless I revealed it to them.

For the next month, I stayed in Kishurra as Emezen's disciple and learned how to use my magical face. Besides learning face changing, I learned the magic of voice changing as well.

It seemed my magical face mask could also replicate the face's original voice.

"It is time for you to get another face", Emezen told me.

"How do I do that Mistress?" I asked her.

"You would first need to kill someone, and I'll teach you how", she told me.

KILLING A HUNDRED FACES - THE STARGATE TRIAL