As Zhao Yuanzhen and the Mysterious Realm Gatekeeper fought various fierce battles, Yan Yu had roughly assessed the puppet's strength.
It was strong, but only in terms of level and realm, lacking any advantage in technique.
For example, in the previous battle within the Secret Realm, the gatekeeper Demon Monk had an endless array of spells at his disposal, which were difficult to resist and he excelled in suppressing counterattacks. This was what made him technically formidable.
But now, this puppet was the complete opposite; even if it used sword techniques never seen by anyone before, it still mechanically followed the script, like a robot programmed with set instructions, devoid of any technical substance.