This was the first time in the history of the universe that the perfect warrior was hit by an opponent and that opponent was not using the power of the karmic essence to face him.
The perfect warrior had taken much worse hits in sparring, however, all of them were always powered by karmic essence and were a suicidal move that his opponent's could not control.
What Rudra achieved today and how he fought was something that the perfect warrior had not yet witnessed and it amused him greatly to face such an opponent.
[ Constant Regeneration ]
He activated constant regeneration and instantly regained all the HP that he had lost in the fight so far, which was already not much to begin with.
[ Third Step : Shadow Float ]
Once Rudra completed his second step, he moved onto the third step not minding the fact that his opponent was rapidly healing from all the damage that he had dished out.