Critique for da CriticGod
Join Date: Aug 2010
Location: Philadelphia, PA USA
Interesting. My presumption would be that Guilliman was not healing, that was just superstition. The emperor was burnt and blasted, much of his power fleeing to the warp, but now the imperium is feeding him and the throne psykers to keep him going.
Obviously, I don't know the mechanics but it seems possible that either those psykers go directly to reducing the psychic cost of the throne OR they are added to the emperor's psychic might - continuing the aggregation of the shamans so many years ago.