Anyone else getting the vibe that the newly released cards are pushing Singleton Paladin? You can truly make a deck that can survive as well as having a power board of minions like these. Only thing Paladin needs now is a card generation, like adding more Dragons to hand!
In a vacuum, amazing card. Whether or not it will see play really depends on the meta, and if a midrange-or-slower paladin deck can thrive with all the new high-power decks that will be coming out. If a paladin deck like that does make it into the tiers, this card will very likely be in it, whether it's dragon-centric or not.
Could well see play in some of Shirvallah combo deck too - the combo's still alive until at least rotation, and a healbot with +2/+3 stats is a great way to help live long enough to combo off.
Because healbot was one of the most played neutral cards and this is more than a little bit better than it. +2/+3 and the ability to target the battlecry is way more than the standard class card boost.