It's been awhile since I've done a card review and I wanted to advantage of that fact and cover what has felt like a pretty solid alternative to Warden of Healing. Ah yes, the almighty Warden. His ability to spread his healing to multiple characters with a simple exhaustion, a built-in readying effect, and his synergy with Elrond have put the Healer on a pedestal for pretty much his entire time in the card pool. Since then we have received other worthwhile healers/healing effects with the Silvan Tracker, Wellinghall Preserver, and the Galadhrim Healer. Admittedly, with the Galadhrim Healer I thought we were really close to having a contender. The issue with the healer is that it is best used in a Silvan deck, not necessarily because of any trait interaction, but for that deck having the ability to take full advantage of the ally's ability. Being able to heal 3 heroes on any 1 player is excellent, ESPECIALLY with Elrond involved. Still not enough to knock the Warden down a peg.
Back to the Caregiver. For two resources you get an ally that can almost do the same thing (except it requires two discards vs. an exhaustion). The caregiver, however, can quest every round, and has an extra hitpoint. That extra hitpoint particularly stands out to me in the more recent quests I've played. I've seen many a Warden come into play only to be wiped out in the next turn or two due to it's 1 hitpoint. The caregiver at least is bought an extra turn of survival and, worst case scenario, can heal itself if you're so inclined.
The biggest ding against the Caregiver is of course the consistent taxation on your hand that's required. And I'll admit, the Caregiver is not a 100% replacement to the Warden, but it's pretty darn close. What keeps the Caregiver in high regards to me is that it is less deck specific than something like the Galadhrim Healer. Being in a Noldor deck obviously puts the Caregiver into Warden levels of excellence but without Noldor it still operates just fine. In fact, just including a card like Elven-light makes the Caregiver a no-brainer. Chuck a card for healing and then pay a resource to draw a card. People are quick to point out that the new Arwen Undómiel turns cards into resources and, with Elven-light, resources into cards. With the Caregiver, cards become healing points and resources become the cards needed for that healing (with the added caveat that you still get to draw a card!).