Have

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Homarid Explorer

When Homarid Explorer enters, target player mills four cards.

Countermand

Counter target spell. Its controller mills four cards.

Thought Scour

Target player mills two cards.
Draw a card.

Mulldrifter

Flying
When Mulldrifter enters, draw two cards.
Evoke {2}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

Mind Sculpt

Counterspell

Don't Have

Jace's Phantasm

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

Curse of the Bloody Tome

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

Island

Jace's Erasure

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

Memory Sluice

Target player mills four cards.
Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

Chronic Flooding

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