User blog comment:Jabberwokk/Primarch's Roles/@comment-5821760-20121211033307

Magnus was created with a unique pyshic gene and understanding. It was said that he even was able to telepathically talk to the emperor before the ruinous powers scattered the primarchs. The emperor was pleased with the abilites of magnus because he would be able to understand the emperors trials as being a very powerful psyker.