The Direct Disciples' Thoughts

As Elder Xi explained, Cain and Amber appeared to be calmly listening. But a thought struck their minds. Before reaching quasi-grandmaster attainment, the duo was confident that Cain could already at least fight an Early Divine Ruler without being completely helpless. 

Cain and Amber didn't think this was arrogant. The duo knew full well that Amber would be helpless against a Divine Ruler pre-Holy Land days.

But with Chaos energy, Cain was sure he can match the power of Supreme Divine Laws and a Dao Origin at that time.

Of course, he still has yet to fight a full-fledged Divine Ruler. However, he didn't think this guess was too far off the mark. 

The Quasi-grandmaster attainment level did certainly help in assuring his victory over a Divine Ruler. It is also the main reason why Amber can potentially suppress Divine Rulers now.