User blog comment:Blueyhale/How do World Eaters get around without psykers?/@comment-28917471-20150506104611/@comment-76.30.149.218-20150510044056

This is pretty much what I think, in a neat little box with a bow. However, I have 2 other thoughts: 1, mutations probably do happen on occasion that copy the navigator gene, although it is pretty rare, and navigators rarely do turn to chaos. Actually, I wonder why they are so devoted to the Imperium. Probably out of loyalty to their House, but still... The second thing is that there are Khorn champions who are psykers, probably because they just increase their strength or such, instead of cowardly weakening opponents or striking from afar. (Khorne, unlike Tzeench, is not so bright). However, I only know for certain of one, and he sees psyker powers basically as a tool to keep from dropping in exhaustion, so he can fight for 24 hours, or 2 years if a fight lasts that long, without dropping. Unlike those others who see becoming a D prince as immortality, he saw it as a means to spill more blood. "LET THE GALAXY BURN!" and all that.

Also, Khorne hates those who strike down friends or allies, yet loves those who do so because it shows their dedication to him. He's a chaos god, and like humans, a paradox.