@a_skeleton_03: If you watch the footage from his games, it didn't matter that Tutelage didn't trigger from it. He was using it to restock on Fogs. Treasure Cruise delves non-fog cards out of your graveyard, improving your deck-composition for Fog re-draws. Once the deck is set-up, it only takes ~2 turns to mill your opponent out, even with the full deck reset they get, the Days Undoing are just there to make sure he gets enough fogs to *get* those 2 turns post-set-up.
Crater's Claw out of R/G Devotion and Ugin out of various things force the deck to run maindeck countermagic, and a goodly amount of sideboard countermagic.
I don't think it's a particularly great deck, but it should be functional, depending on the metagame.