According to those of Yoshigakure, Shikimi was an overall monster. Mj is capabilities were beyond what that would expect from one who had never trained in a village before. Officials of Yoshigakure stated that he'd easily surpass Jōnin-level, and be on par with that of a Kage, and possibly taking one down with utter ease. This is because Shikimi has it all, the intelligence, capabilities, and personality.