Overwhelming Space Element

Grey vanished from where the attacks were about to land, in his place was the unprepared Lightning Elementalist. 

Boom! 

"Ah!"

An explosion rang out, followed by a scream which didn't last up to two seconds before dying down. 

"Ronald!" 

The Wind Elementalist amongst the two ladies screamed in horror. 

The captain of the group and the Fire Elementalist had their mouths and eyes wide open after witnessing what just happened. He could at least come up with an explanation when Grey attacked him, but in this scenario, he didn't know what to think. 

He turned around, and Grey was leisurely standing in the position the Lightning Elementalist was standing with a smug smile on his face.

"How… is that possible? How can you switch places with a person without the person actually moving on his own free will?" The captain asked Grey.