This is meant to be a thematic deck, representing Gandalf, Merry, and Pippin entering Fangorn and awakening the Ents. Even Steward of Gondor does not seem like a thematic concession here, as it is meant to go on Pippin .
You put Steward on Pippin, and you give Gandalf his toys. With the Steward and Staff that's an extra 3 resources a turn, and once Treebeard is out you are generating a total of 7 resources a turn. Coupled with the deck's low starting threat, you can get a massive army of Ents before you have to deal with enemies.
Narya seals the deal. You get to defend with Treebeard, then ready him to defend for 4 twice or defend for 4 and attack for 5, and even more times you you save up some of Treebeard's resources (I never do, as the deck has so much card draw you can always use them). Narya readies a second Ent as well, and I often choose Derndingle who can then defend for 6.
I was thinking of making a video for this one, but wanted to get suggestions for improvement first. Let me know what you think!
http://seastan.github.io/#/deck/id:luUouki20g