Thanks for the comment Legion, glad you enjoy it. There just hasn't been too much activity on these boards for a while, that's all.
And it is a lot of fun to play, and I've actually got it paired with about twenty different shadows at the very least. Grima is annoying to deal with cycle wise, but it is very hard to kill this deck since it can essentially just set up a solo Bilbo if everyone else dies, I mostly just tough it out when Grima shows up. Other than that though, the cycle and auto setup elements make it very reliable on the fellowship side and strong on the minion side.
As for specific shadows I've used, it's mostly been ork, moria, men, uruk, nazgul, and all sorts of strange hybrids which use some weird combo and just need the filter to even have a chance of working. Those are the most fun. In short, you can use virtually any shadow with this that you want to.