After Butterfly of Delirium, I went ahead into a new area called Dried-up Trenches. In this area, it is very easy to fall off the cliff which will cause instant dispersal (death) with no possibility of your companion using Restorative Offering.
In this area, you will meet a boss called "Insatiable Despot". He is pretty easy to deal with, he puts down summoning stones which if you don't destroy it, it will turn into an enemy which is fairly easy to deal with as well.
By the time, you get him below 50% health, he will most likely perform an animation which he takes out a spear from his chest and forms a new weapon with new attack animations. I personally was able to take him down first try, so I don't think he will be too difficult.
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