This tree smells cheesy...
Rock toss until it moves out of range from behind the fog, once they stop hitting or it has been staggered it's safe to go in and the AI will be broken. The AI seemed to fix it self from my summon, but at that point it was too late.
My audio apparently didn’t record but it’s self explanatory. Stand at the fog wall, cast rock Toss so that the rocks spawn on the opposite side of the wall, and do that until it dies or until it moves too far away. If you stagger it, the AI should be broken when you enter.
![](https://i.ytimg.com/vi/rvlda2hZ5bg/maxresdefault.jpg)