I don't like this card. There aren't any great elven defenders, and the ones that are half-decent need a boost to defense not health or sentinel.
There are only 3 half decent elven defenders. Elrond with 3 defense, Rossiel with the potential to have 4, and Elrohir who can get 4 easily if you include his brother. Four defense doesn't seem bad sometimes, but so many quests now-a-days have enemies with 6+ attack. Since the elves don't have access to any good defense boosting cards, I was really hoping this card would offer some sort of help in that regards. Sure there is Cloak of Lorien but you can't count on the 2 defense. There is also Protector of Lorien, but that isn't very sustainable unless you are playing deck dedicated to discarding. You also have Gondorian Shield and Dunedian Warning, but you'd need to attach two cards just to get you to 6 defense and then Elven Mail would be a third card you need.