This deck looks great, but I have a few notes. I'm not a big fan of having mora copies of
Fabled Passage than targets. if you draw just a single basic land,
Fabled Passage becomes a lot worse, so I'd probably limit the deck to just 3 Fabled Passages. I also see three different planeswalkers with very different functions at very different mana costs. These present a wide variety of ways to try to win, and I'd probably narrow it down to playing three copies of a single planeswalker instead. Lastly I think it's worth to consider playing a few copies of
Arguel's Blood Fast. It helps with Delerium. Your only enchantment so far is
Courser of Kruphix which is great, but one more enchantment seems like a good idea.
All in all great deck. I'm excited to see how the format evolves.