This is version three of the mono-blue prison mill deck, the first with Eldrtich Moon cards in it.
The main win condition of the deck is to mill the opponent out with one or more Sphinx's Tutelage triggered by the many spells that draw cards, and Startled Awake (which sometimes gets recycled out in really grindy games)
While you're looking for mill cards with Anticipate, Nagging Thoughts and Pore Over The Pages, Prism Ring, Engulf The Shore, Hydrolash and Grip of the Roil are keeping creatures at bay.
Geist of the Archives is a great wall \ scry mechanism, and Manic Scribe is a smaller wall \ mill mechanism, although it doesn't often get to delirium. Tried including Evolving Wilds to get lands in the graveyard sooner but doesn't feel right although it is truer to the mill strategy than Geist.
Sideboard The alternate win is through Thing in the Ice which is both a good early blocker, a boardsweeper, and a mid to late game finisher depending on your opposing deck. It's not great against BW Control for example.
Negate is good against other control decks and Planeswalkers, and Forbidden Creation is useful against creature light decks where Engulf The Shore isn't going to keep bouncing them.
Clutch of currents will be useful against Spell Queller and Reflector Mage. Ditto for Unsubstantiate. Imprisoned in the Moon is one fo the few ways to interact with Planeswalkers.
MaybeboardAm considering splashing white with prairie streams for declaration in stone and / or spell quellers as well.
