Hanskrampf wrote:It does not.
Allegiance and "Battleline if" are for list building. And you build your list inside the allegiance and with the Battleline-if condition. You set aside points for summoning. You don't have to say what for. Bring a Mourngul and set it beside the table for psychological warfare. No need to summon it.
BUT you can only summon a unit of 2, as stated on the Morghast Harbinger warscroll.
Hmm... You are right I did not read it fully.
Welp it's another incentive to bring Master of Dark Arts on my General.