Board Thread:Warhammer 40k General Discussion/@comment-25686730-20141212030710/@comment-6078851-20141214171045

in regards to the power of a thousand sons sorceror i don't think it's meant that 1 can take a chapter, but rather there is more inate power within a thousand son sorceror than a whole chapter of regular marines - for example: a chapter could destroy a planet with orbital bombardment mass destruction weapons and the like, whereas a single, top tier, thousand son sorceror has the potential to destroy said planet on his own.

the thousand sons are extremely limited in numbers but the sheer scale of their sorcerous powers more than make up for that lack. the rhubric of ahriman is a good example of that power as it negated any warp mutation in those using the warp (although it did make automatons of most of the chapter), and while magnus was very pissed at ahriman he was also quietly proud at his initiative, resolve, and power, given that the spell actually worked.

personally i think magnus is underestimated by most. in terms of psychic power he was second only to emps and no other primarch, loyal or daemon, even come close to his ability. he hates that he and his chapter had to be saved by a chaos god, especially as he was loyal and tried to warn emps, and he may be plotting against tzeentch, but for as powerful as magnus is there's no way tzeentch wouldn't be aware of, and amused by, such plotting.