In all games I used my captain from the assault on the black reach as my rune priest, so its time to use a real librarian now!
So I opened my bit box, and gather different bitz for the conversion, and this is what came out!
The thunder hammer is from the wolf guard box set, the body is from the
rhino box and tactical squad. The legs are from sanguinary guard box,
the book is from the high elf dragon box, and the hood is a conversion
from the shoulder pads.