Dark Raven form seems a little weird. Why would an owl want to turn into a different bird? Starshine or a scrying ability would be a good replacement I think.
could do with heal champ too other wise its too over costed in my opinion. Barbarian druid is the best support in game and it comes with a better kit at a similar cost (( I think druid is fine and the above isn't a nerf call ))
I like the design, except for the raven form, but it's only because Warlock already has it. Healing Mind would be amazing with this art, but then it would be in conflict with the rule I just made up (but makes sense to me). No champion with "seer" in the name has it, but it does make sense. Another possible candidate would be Gift of Scrying.