Please, explain this to me, as I have missed some of the content due to my choices in the dialogues with Emperor.
Initially, Balduran admits he created an illusion for us (for each infected companion in fact) that would be acceptable and not considered as a threat.
But then, in the final battle, he actually summons several dream visitors to fight against as. And they are not illusions, even if mind-controlled by him.

So, what are they??