First off,
Gandalf's Staff, Ash Staff isn't movie block legal. I think the original from Mines of Moria would be your best bet here to make the Servants free. If
Wormtongue becomes a problem for you,
Terrible and Evil is probably the best way to get him before he gets you. Unless you change things to use Preperations and
Slaked Thirsts, but I think that would take too many spots. Another thing to think about is to use
Gimli, Unbidden Guest instead of
Son of Gloin. He'll help Aragorn and Gandalf win, as well still be another Gandalf signet. I would probably also use
Gimli's Battle Axe, Trusted Weapon for the additional archery if you get the threats since not everyone plays orcs. I think it's a good deck and should work pretty well.
Also, kudos for using Bilbo to recycle the weeds back. Haven't seen that done since the beginning of Fellowship block.