system
Given the following post, respond as if you're commenting on Reddit:
human
[40K] Was the Council of Nikea part of the conspiracy that began the Horus Heresy?

In the novel Mark of Calph, Roboute Guilliman made a remark that was something along the lines of how it seemed convenient that the librarians were disbanded not that long before they were faced by threats from the warp, against whom they would have been more effective than conventional weapons. Was it only coincidence, or was this done intentionally by those that were plotting against the Emperor?
gpt
It may have been coincidence or not. But it wasn't by the plotters at any rate. The decision was made solely by the Emperor. Not to mention that there were Primarchs arguing for either result on both sides. Mortarion for example *hated* psykers even more than Russ, but then he ended up rebelling in the Heresy. After which he realized how he had allied with the sorcerers and daemon thralls. He was less than thrilled about that.