User blog comment:Xilinoc/Ch. 610 - Mausoleum of Skulls/@comment-26815763-20141222212315/@comment-24531362-20141223225734

He survived because, as I understand it, 'The Almighty' allows him to nullify anything he understands by synthesizing a way to defeat it; it basically is a guaranteed 'three steps ahead' thought process. Ichibei explained his power to JuJu-Man, giving the God-King the knowledge necessary to extrapolate a way around it. Therefore, the way to defeat Yhwach is to use a technique to wipe him out before he can understand it.