Chronic Flooding

Enchant land
Whenever enchanted land becomes tapped, its controller mills three cards.

Curse of the Bloody Tome

Enchant player
At the beginning of enchanted player's upkeep, that player mills two cards.

Otherworldly Gaze

Surveil 3. (Look at the top three cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Blink of an Eye

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)
Return target nonland permanent to its owner's hand. If this spell was kicked, draw a card.

Insectile Aberration

Delver of Secrets

At the beginning of your upkeep, look at the top card of your library. You may reveal that card. If an instant or sorcery card is revealed this way, transform Delver of Secrets.

Delver of Secrets // Insectile Aberration

Shriekgeist

Flying
Whenever Shriekgeist deals combat damage to a player, that player mills two cards.

Didn't Say Please

Counter target spell. Its controller mills three cards.

Jace's Erasure

Whenever you draw a card, you may have target player mill a card.

Dream Twist

Target player mills three cards.
Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Spell Pierce

Counter target noncreature spell unless its controller pays {2}.

Curate

Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
Draw a card.

Jace's Phantasm

Flying
Jace's Phantasm gets +4/+4 as long as an opponent has ten or more cards in their graveyard.

Island

Mind Sculpt

Scry 1. (Look at the top card of your library. You may put that card on the bottom.)
Draw a card.

Mana Leak

Counter target spell unless its controller pays {3}.

Venture Deeper

Target player mills four cards. (Then exile this card. You may cast the creature later from exile.)