At least I think it is rather good, if the text is what it seems. Remember Galadhrim Weaver from the recent spoiler of Treachery of Rhudaur. Well, it was agreed that it takes the top card of your discard pile and shuffles it into your deck. Certainly something you need a lot of in the Erestor decks. Well, I was searching through the card collection to discover a card I hardly ever used: Children of the Sea. It already has some use in Silvan decks but since its prime bonus is to add willpower and Silvan are already so great with willpower, I have almost always dropped it instantly. Now, I was trying to put up an Erestor deck, making proxy of him, Elven Spear and Galadhrim Weaver. I find that Children of the Sea should be great for the Weaver. She cannot attack or defend so basically the only think you want her for is questing, plus the nice ability that triggers as she enters play. With the event she will quest for 3 and come back later for you as you race through your deck swiftly with Erestor's ability.
What say you?