Just posting a quick greeting from Ostermark! Just last night I finally dinged rank 20 on my Magus, very exciting :).
I'm seriously considering going back to the Order side with a KotBS because they just look so amazing. My alt is a Shadow Warrior, so I'll have something to fall back on should I not enjoy it as much.
The Blackguard sounded interesting at first, but looks-wise I just don't think it looks badass enough compared to the Witch Elves or Disciples of Khaine.