Grey didn't stand idle, after a few seconds, he picked his target. Of the two, the Fire Elementalist was the one who had the highest probability of escaping if left unattended, so he chased after him first.
While fighting, he had already marked them, just in case of things like this. Now that he had to chase them down, he picked the Fire Elementalist.
The speed of a Peak Sage Plane Elementalist should not be undermined, a regular Peak Sage Plane Elementalist can travel over a thousand meters in the space of two to three seconds, and a Wind or Lightning Peak Sage Plane Elementalist can travel even further with the same time.
Grey's body was covered with both the lightning and wind element and he shot after the Fire Elementalist.
Within three minutes, he caught up with the Fire Elementalist, and he sent a lightning bolt at the fiery figure blazing through the sky.
The lightning bolt hit the Fire Elementalist, striking him down.