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Can a Vamp with the Flying Horror Vampiric power join a unit of fell bats? I'm not quite sure.
I've looked all over the rule book but have come up empty handed, but im probably staring it right in the face.
Because i'm trying to design a bat based army and it would really help my list.
Page 69 under the heading "Units of Flyers" in the paragraph just before "Flying cavalry"