This has to be one of the most underrated cards from the core set.
It is so versatile. If you are using the classic sneak attack & beorn/gandalf combo, I would highly recommend that you throw this in to your deck. Sneak either of them in during combat. With Gandalf, you can defend for 4 , ready using Ever Vigilant and attack back for 4 . With Beorn you can get 2 big attacks out of him before he runs off.
It is also phenomenal with Faramir as his ability isn't restricted to once per phase and so you can add 2 or more to each questing character!