the army of the dead might be a little overpowered (but then again so is soulgate
). if you do decide to make them then all you would really need is to give dispossesed spectral swords and turn them green (and make spectral legionairs just slightly stronger versions). only problem is they only really have one leader but im sure they could have captians. they should be fast and maybe an expensive commander/unit that looks like a bunch of them could have trample to show how they slaughtered the enemy in a huge tide of ethereal death