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

Reminisce

Target player shuffles their graveyard into their library.

Ponder

Look at the top three cards of your library, then put them back in any order. You may shuffle.
Draw a card.

Disallow

Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)

Diabolic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Battle of Wits

At the beginning of your upkeep, if you have 200 or more cards in your library, you win the game.

Personal Tutor

Search your library for a sorcery card, reveal it, then shuffle and put that card on top.

Lost Auramancers

Vanishing 3 (This creature enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When Lost Auramancers dies, if it had no time counters on it, you may search your library for an enchantment card, put it onto the battlefield, then shuffle.

Despark

Exile target permanent with mana value 4 or greater.

Archmage Ascension

At the beginning of each end step, if you drew two or more cards this turn, you may put a quest counter on Archmage Ascension.
As long as Archmage Ascension has six or more quest counters on it, if you would draw a card, you may instead search your library for a card, put that card into your hand, then shuffle.

Unsummon

Return target creature to its owner's hand.

Nevermore

As Nevermore enters, choose a nonland card name.
Spells with the chosen name can't be cast.

Counterspell

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Brainstorm

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

Enlightened Tutor

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

Detention Sphere

When Detention Sphere enters, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent.
When Detention Sphere leaves the battlefield, return the exiled cards to the battlefield under their owner's control.

Path to Exile

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Doom Blade

Idyllic Tutor

Search your library for an enchantment card, reveal it, put it into your hand, then shuffle.

Go for the Throat

Mystical Tutor

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

Cast Out

Flash
When Cast Out enters, exile target nonland permanent an opponent controls until Cast Out leaves the battlefield.
Cycling {W} ({W}, Discard this card: Draw a card.)

Mana Leak

Counter target spell unless its controller pays {3}.

Disperse

Return target nonland permanent to its owner's hand.

Arcanis the Omnipotent

{T}: Draw three cards.
{2}{U}{U}: Return Arcanis to its owner's hand.

Long-Term Plans

Search your library for a card, then shuffle and put that card third from the top.

Oblivion Ring

When Oblivion Ring enters, exile another target nonland permanent.
When Oblivion Ring leaves the battlefield, return the exiled card to the battlefield under its owner's control.