Jar Of Dirt?

Grey stood stunned, the trio stared at him, dumbstruck. Alice couldn't believe her eyes as well. 

"How is he so strong?" She muttered, shocked. 

One of the shocking things about Grey's attack was that they sensed very little impact from it. It was contained, of course, not at the level of the young man from where Grey took the armor, but at least, it was far better than these people at the Elemental Venerable Plane. 

If the young man had seen Grey use the attack so efficiently, he would be dumbfounded. One has to know that this was something that took years to get the hang of. Getting the hang of it is not as hard as actually implementing it in an attack. 

The reason it looked this good was mainly because Grey used his physical strength. If he had used his elemental attack, he wouldn't have gotten this result. It would've been far from it.

Their shock didn't stay for too long.