When Kent spotted the formation in the City of Blades, he sensed some familiarity with it. Of course, this familiarity wasn't the kind that suggested he was the one who created it.
The feeling leans more towards the connection he felt from his soul universe.
They could feel the origin of the formation came from the same origin as his soul universe. So Kent decided to investigate.
First, he created a clone body inside his soul universe and then, using the abundant soul essence at his disposal, he tempered it, imbuing a soul mark into it.
In a way, he made the clone body a living entity for a limited period.
One hour to be precise.
Within that one hour, he could act as a human through his clone body. This was because he wanted the formation to register him in his clone body, which it did.
Then, while his clone body fended off the attacks of the formation, his main body sneaked in and started observing the formation.
