Maybe the ancient evil is Medicant Bias!

So if you have read Cryptum you know Medicant Bias became rampant because of the Master Builder.
That last thing from the video looks mechanic so maybe it is some form of AI!
Thoughts?

He is said to be dead…

BUT the gravemind isntttt!!!

Mendicant Bias was evil but in the end he turned back to his normal ways. So he can’t be the evil.
Plus I’m pretty sure he’s dead.