Ethereal Arbiter

ethereal armor your witchstalker and or gladecover scout for obvious reasons. cast the oracles insight on the sylvan caryatids ideally, because they will oftentimes sit on the board untapped if you arent using them for mana. the springleaf drums are excellent when you have a prophet of kruphix out and you want to tap your arbiter during your opponents end step. you can run out quite a few permanents this way and even if you miss on the arbiters trigger, it is still a pseudo-scry. karametra is an undervalued card imo, and she tutors breeding pool, hallowed fountain and temple garden to thin the deck and smooth mana usage late-game. this hasnt been tested against a lot of decks, so there is no sideboard and i am sure there are some weak match-ups for it, but it seems pretty strong and is fun to play.