Cain frowned as he focused on the energy pool of the unconscious assassin. While the Eye of Gluttony allowed him to perceive the change in energy density, he lacked the abilities or tools to analyze the energy pool of the man thoroughly.
"Ah, the Level System grants me great raw power, but other than that, even I, who masters spells, am severely restricted in several fields. Even though I am a step away from the Soul Realm, I still have to rely on my senses to perceive the world around me." Cain couldn't help but sigh as he saw the severe shortcomings of the Level System. It could allow the rise of mighty warriors but limit their path to machines of destruction and nothing more.
Although Cain would have wanted to obtain more information about the man's cultivation, he knew that was not possible, at least not with his current abilities. He took a deep breath and closed his eyes, replenishing his energy pool and heightening his senses.