Army Composition Question (Grey Knights/Space Marines)
Hi all. This is probably a really dumb question. Like... really dumb. But as I'm only just getting back into the hobby, and I don't have all the books I need yet, I figured asking you nice folks is the best way to find out the answer...
I am wanting to build a Grey Knights army (modelled as pre Heresy Thousand Sons). I don't yet have the book, but I've seen enough threads around about the idea that I've been sold on it. That being said, I'd really love to take Tigerius in the army for a Thousand Sons list - his use of psychic powers for tactics and immense versatility suits the Thousand Sons perfectly, IMO. Is there any way to do this? Or is it impossible to get units crossing over between lists like that? Alternately, do the Grey Knights have any characters or HQ options that are at all comparable to the psychic awesome that is Tigerius?