But he didn't have to.
Neither he nor Severin moved away from their spot. It would have been useless if they did. They had no hope to outrun or outspeed a Refined.
They waited for their other team member to act.
When Severin told Ethan that he needed him to go back to the basics, he meant for him to go back to the very beginning and to understand what gravity could do. It wasn't just all about brute force or making things heavier or crushing things.
There was also the soft power of making things lighter through manipulating the gravity around such things.
Exactly what he did to the gravitational force around Zigi.
As the man shot forward, his body became so light, so fast, that he didn't even have the time to adjust as he shot upward instead of forward.
"Wha... ahhughhh!"
He went straight up and slammed into the ceiling headfirst, making a head-shaped dent in it.