It seemed like after the cleansing of his body, and especially the fact that it had happened under the 10 times gravity, his new body was customized according to that gravity.
The reason that his steps were so light in the Stone Altar, was because the gravity was extremely low in there, and couldn't compare to what his new body could bear.
Not only that, but his full body composition had changed, and he felt that if he were to fight Amelia at this moment, while he might not defeat her, he would certainly not lose either.
The only reason why he felt that a draw was the most probable option was due to her Sword Energy, and his inability to understand at what depth she had trained it.
One has to understand that was under the condition that he used only his strength as a Rank 2 Warrior, if he used his full strength then there was no way she would win against him.
