I personally love every shadow with
Ships of Great Draught in it, because you can get some value while still cycling well, when you are not the first shadow player (and corsairs are generally a very solid choice because with
Black Sails of Umbar you can boost a fellow shadow player's turn into an easy kill). Also playing corsairs in expanded is not even nearly as disgusting as in movie block, so you probably won't pull that much hate.
I'm not a huge fan of the idea of playing a shadow with a bunch of support minions like
Goblin Runner, because in that case, when you are the first shadow player, you can't really put up enough stopping power (
Wormtongue is a notable exception).