Ghost snake had already guessed that Lucas was definitely normal; however, after sensing that his talent was upgraded from Marquis grade to Duke grade within a few seconds without any pain, he felt he did the right thing in taking the gamble.
'Although he is still just a tier 3 lesser knight, he is capable of upgrading other people's talent. This is definitely Heaven's defying ability.'
'As long as I follow him, I can definitely take my revenge in the shortest time possible.'
Until now, Ghost snake was just trying to use Lucas and the Hellmore family; however, after seeing Lucas' heaven-defying ability, he decided to stay loyal to the young man in front of him to the very end.
As for why he called it a heaven-defying ability was because only the heavens could bestow or upgrade the talents.