Why Lucifer hated Rudra

In his sickening hate for Rudra, Lucifer did not even turn to look at the god's that had been freed as his attention was locked on the mortal who had defied all odds to destroy everything that he had worked hard to obtain. 

The prison of darkness was destroyed , Lucifer lost his arm and now he was drained and battered and completely incapable of facing two powerhouses like Omar and Hades together. 

All this had been brought about by Shakuni Won Knight a mere tier 5 half human half angel who was never supposed to be more than a small fry that should be easy to kill by Lucifer. 

It was not because Rudra was weaker than him that Lucifer looked down on him, the true reason why he hated Rudra so vehemently was because long ago he was the same. 

When he was tier 6 he tried to challenge the true god's and his master who was a tier 7 powerhouse and failed miserably.