Isildur's Knights

[Elessar's Socks]

Are you kidding? Sapling of the White Tree is a great card. Up there I ran 4! Don't always have room for a full set of those puppies, though.

For condition removal there's always Pallando. Chances are there won't be exertions left for Gondor Bow, but CotS can substitute for that, or you can even use the old-fashioned strength way with Fifth Level. Neat trick: purposely keep a fierce minion alive to get 2 conditions discarded with Pallando, 2 heals with Banner of Westernesse, etc.

Usually I start Alcarin/Ingold or Alcarin/Turgon. Even though Denethor can pull stuff at sanctuaries, having an extra knight in the starting fellowship really helps with those fortifications. Both Alcarin and Turgon combo well with Fifth Level.

[Pepin The Breve]

Well, NBarden it´s right about Nazguls. Knights should have no much problem against it (but i still think a corruption nazgul deck can cause some trouble) but things like Thin and Stretched along with The Ring is Mine! can corrupt or friend Isildur faster than you can imagine. So, i think Anduril is a good choice for you (maybe way better than athelas in fact...). I really don´t know much about standard cause i play mostly movie block so it´s very likely i miss some good cards just like Anduril, Sword That Was Broken.

[Elendil!Urukfear]

Dude, Gog. What happened to this deck, I've never played it.
It looks pretty good...