The idea behind this deck is simple - mono blue devotion is already pretty solid, this deck ups the anti for opposing decks by making them worry about both your tempo creatures and the fact that you can smack down a Nyx and win on the spot with the Combo of Traumatize + Fraying Sanity. Some of the 1 drop creature drops were replaced with mill creatures to help play with the combo.
4 Master of Waves
4 Merfolk Trickster
4 Overwhelmed Apprentice
4 Tempest Djinn
4 Gadwick, the Wizened
2 Harbinger of the Tides
2 Brazen Borrower
4 Fraying Sanity
20 Island
4 Nykthos, Shrine to Nyx