lich vestige

I was looking at my warband that I am trying to build using ddm warband tool and I just so happend to be creating a purple (underdark) warband. I scrolled down to the bottom I usually like to pick up some low cost minis for my warband anyways I noticed the lich vestige. I read the card and there isn't any text saying that I can't have this mini in my warband can someone please let me know is there anything that I am missing like maybe I need the aspect of vecna or something??? It looks like the high level aspect of vecna can summon a lich vestige do I need that mini to get the vestige? Any help is always much obliged.
Yes, you only can play the "Lich Vestige" with the power of the Epic "Aspect of Vecna".
Yes, you only can play the "Lich Vestige" with the power of the Epic "Aspect of Vecna".

Great thank you very much for the reply makes more sense that way.