It's currently looking like:
3 x Heralds / Portaglyph / Grimoire / Greater Etherblade
3 x Pink Horror Squads
Soul Grinder of Tzeentch / Warpsword and Warp Gaze.
I'm still working on it, I really enjoy my Marines more at the moment, so I might change something about this to make it more fun to play.
Doom given form.