Inheriting The Legacy

Even when he is talking honestly with this child, this child could still spout such nonsense without batting an eye.

Yes, Azief did not tell the entire truth. He knows from the beginning that Wargod had no reason to snatch his legacy. There is no need to make such trouble just to snatch the legacy from him

There is no need to lure Will and Samara if the purpose is just to snatch his legacy. He could actually guess why Wargod wanted to meet him

It could be traced back from the moment he met Borgan.

From that moment on, the fate and destiny that he possess is inextricably linked to the Etherna.

He had learned about Will and Samara and how Samara look at Will as the carrier of her race knowledge and the inheritor of her race.

There is many Speedsters in the Omniverse.