Doppelganger.

Faced with the doppelganger, Ozul weighed his options on how to deal with it.

Since an artifact created it, there were still faint traces of Spiritual Essence on the doppelganger, but it wasn't to the point that it could make practical use of it.

He wasn't surprised that the doppelganger didn't have Spiritual Essence for its own use, but the old man spectating quietly couldn't help but think that something was wrong.

The old man had considered Ozul using an advanced artifact to conceal his Spiritual Essence, but the Mirror of Self-Reflection could look past such tricks. After all, it even read people's memories and their emotions.

Only he didn't know the mirror had failed to read Ozul's memories. 

'There's nothing that I can do,' Ozul couldn't think of any way he could salvage the situation. The old man was bound to foster suspicion after this was over.