I like the look of this deck a lot, and it seems like you could tweak it a couple different ways too depending on the quest.
Seems like a great deck to add Tale of Tinúviel to. Imagine Beravor exhausting to defend, then you play Tale of Tinuviel exhausting Glorfindel to give Beravor +3 defense for that attack and readying her to either defend again or attack back. Then you ready Glorf either with Narya or his ability.
Including one copy of Elven-light would also make Glorfindel a true monster, especially if Cirdan is expected to be swimming in resources.
Thanks great suggestions! I never thought of Elven light!