C3000 Polar Assault
The stronger he encountered, the more powerful he would be. This was because Gu Fei might feel powerless in that short moment when he was facing the Emperor's Imprint of Great Dao, because the other party was invincible.
In Gu Fei's subconsciousness, perhaps he too thought that the Overlord was undefeatable, but he actually had an unyielding backbone and the arrogance of a Warrior