i am also interested in seeing a build for this 
I have a decent idea how I think I'd do it... but I too am interested in a build or two... as it's always a good way to catch anything you might be missing / not considering, from the experienced Warshades.
One thread up is Soul Storm's Tri-form Build, but it's very heavy on human and nova - so much so that I would recommend taking it for human/nova and just dropping dwarf form, freeing up four slots for whatever power you replace it with.
The Scrappers' Guide to Dark Melee | Kheldian Binds and Strategies
I love my all human WS, by far one of my favorite toons. He has a sturdy build (perma-eclipse and such) but ive been wanting a multi build to keep things exciting! So heres the blunt question, anyone have an affordable (no purps) yet effective human/nova build (not a fan of dwarf at all)? If so would you be kind enough to share it with me =]? Thanks!