Board Thread:Warhammer 40k General Discussion/@comment-6078851-20130130174042/@comment-3258762-20130316075952

As for the AL corrupting gene-seed: They did quite clearly corrupt it, but not ALL of it. Hence why so many Raven Guard aspirants being induced with that gene-seed became hulking abominations, but I believe they took some of it clearly.

I doubt the solution has anything to do with how powerful a psyker you are, but more the fact that the sheer power inherent in the Emperor would crush any lesser man, Astartes or not. Like I said, I doubt anything less than a Primarch can handle anything from the Emperor.