Board Thread:Warhammer 40k General Discussion/@comment-108.51.155.155-20131208175717/@comment-37.152.33.225-20131218072536

@107 - I would agree Abaddon would be near enough on a par with Horus NOW, with his pacts, experience/age and deamon blade. What I meant though, was that he could never be AS powerful or have as much potential as Horus because he was a Primarch, where as Abaddon was just and astartes, albeit a very powerful one.

So I think Abaddon has required far more work from the chaos gods to elevate him to a powerful warmaster capable of taking on the Imperium, and Horus required less work because is inherent might as a Primarch was already so great.

I like your idea about Bjorn, it would make for a great story if Abaddon was defeated by a non psyker, so you know he would return but not when he would return.