"Mastered"?

Leonel punched out, his action being followed by a sharp whistling sound. He could feel the wind stacking up against knuckles, his punching speed too fast for the particles to get out of the way any faster. If he pushed just a measure faster, he was certain that he'd be able to shatter the sound barrier, a feat that would be shocking considering the fact that this was an Eighth Dimensional world. 

With a thought, a clone of Leonel appeared, however the original Leonel didn't use it immediately. Instead, he continued filling it to the brim with solid Spatial Force, making it harder and more robust. 

Then, without moving an inch, Leonel allowed the clone punch him with all the force it could muster. 

BANG!

The sound reached Leonel long after the punch landed on his chest. Vicious winds kicked up and his hair was sent flying backward with such force that it even looked as though it wanted to rip away from his scalp.