Pretty good with the quest completed, pretty lackluster without it.
The healing option is heavily overcosted, compared to Greater Healing Potion for example, and only in fringe situations preferable (like when you play against burn decks). Either of the versions also looks worse than Moonglade Portal. But with both effects combined, it makes for a solid stabilizer. My faith in the quest is slightly raised.
At Worst its a 12 hp heal, and on average its a 6/6 taunt which is fair.
its another tool to make Druid harder to kill. Probably will only see play in a deck thats focused on outlasting your oppenent. or maybe we are going to get some good cards with effects that trigger off of heals this expansion