User blog comment:Pualover/Overlord Power Level/@comment-26964222-20150910144815/@comment-3536096-20150910163242

that's because he was fighting Clementine as a mage wearing magic armor, though powerful he was still weaker then her, but while fighting Jaldabaoth he activated his [Perfect Warrior] spell so he is at the same level as him, at least through the eyes of a New World resident.