Have

Brainstorm

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

Don't Have

Annul

Counter target artifact or enchantment spell.

Thought Scour

Target player mills two cards.
Draw a card.

Dispel

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Jace's Erasure

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

Countermand

Counter target spell. Its controller mills four cards.

Tome Scour

Mind Sculpt

Curse of the Bloody Tome

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

Echoing Truth

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Persistent Petitioners

{1}, {T}: Target player mills a card. (They put the top card of their library into their graveyard.)
Tap four untapped Advisors you control: Target player mills twelve cards.
A deck can have any number of cards named Persistent Petitioners.

Counterspell

Vapor Snag

Return target creature to its owner's hand. Its controller loses 1 life.

Fade Away

For each creature, its controller sacrifices a permanent unless they pay {1}.