Brutal Shrine buff interaction with Aul, the crystal king

If you have brutal shrine buff (say from Screams of the Desiccated unique leather belt), you push back enemies on hit, and while attacking Aul, the crystal king, during his Otemba attack, his center of mass will be pushed back and his shield charging clones will start further back from the center of arena. This can be exploited to make sure his clones do not hit the outer walls of the arena, to not expose his azurite minions.