So some stuff has changed, after playing a few games at the shop and consulting the minds of some of the more experienced players the list has taken a turn. Where I was running a plague priest and two warp lightning cannons I’ve changed it around here the new list.

Grey Seer
60x Clanrats with spears and shileds
28 Plague monks with the plague banner.

Thats all 1000 pts. After a few play tests this list rocks provided I can get a good magic phase.  The only downside I can find is character sniping. I fought an army that used the death lore for its magic and in the first round they had killed my Grey Seer and I have to say that there isnt anything rats can do against a block of Chaos Knights.