User blog comment:Jed Revenant man/Suggesting for a possible collaborative idea./@comment-1824611-20130907121825/@comment-1824611-20130907175838

I think Jochannon's right (again) that the best MacGuffin's in dramatic terms are enigmatic ones. Even with it being enigmatic, there's all sorts of reasons any faction might attack an Imperial world: Orks would probably just descend because everyone else was doing so, everyone else has their own reasons, especially if it's warp related - one can boil down an Chaos/Imperial/Eldar/Necron/Tau/Ork response to "use" (Chaos, maybe Dark Eldar), neutralise (Imperials who know about the thing and the Eldar), destroy (Necrons), study (Tau and less-scrupulous Imperials), nab-and-stomp-some-stuff-while-yer-at-it (Orks).