Originally Posted by BlackApostleVilhelm
others in the imperium i could see getting possessed and the like but not a thousand son or magnus. they were masters and they mastered any spell they came across. this is what i think the council did not see, magnus did have control over his powers and so did his legion.
And yet despite all their 'training' they still fell prey to that which they 'practiced'. For all Magnus had trained them in the art of sorcery, he was untrained in its dangers, and on top of the training he passed down, he also passed down that lack of training.
For all their knowledge and training, they could not master any spell they came across. The Rubric of Ahriman is proof of that; an entire cabal of the greatest and most powerful sorcerers of the legion losing control of one of those spells they could supposedly master.
The council was wrong in fearing that they could be easily corrupted, but they were right in fearing sorcery and the lack of full training the Thousand Sons had.