Merchant Scroll

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

Meditate

Draw four cards. You skip your next turn.

Back to Basics

Nonbasic lands don't untap during their controllers' untap steps.

Snap

Return target creature to its owner's hand. Untap up to two lands.

Helm of Awakening

Lotus Petal

{T}, Sacrifice this artifact: Add one mana of any color.

Frantic Search

Draw two cards, then discard two cards. Untap up to three lands.

Mana Leak

Counter target spell unless its controller pays {3}.

Annul

Counter target artifact or enchantment spell.

Sapphire Medallion

Blue spells you cast cost {1} less to cast.

Fact or Fiction

Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Teferi's Response

Counter target spell or ability an opponent controls that targets a land you control. If a permanent's ability is countered this way, destroy that permanent.
Draw two cards.

Island

Daze

You may return an Island you control to its owner's hand rather than pay this spell's mana cost.
Counter target spell unless its controller pays {1}.

Cephalid Coliseum

{T}: Add {U}. This land deals 1 damage to you.
Threshold — {U}, {T}, Sacrifice this land: Target player draws three cards, then discards three cards. Activate only if seven or more cards are in your graveyard.

Cunning Wish

You may reveal an instant card you own from outside the game and put it into your hand. Exile Cunning Wish.

Wasteland

{T}: Add {C}.
{T}, Sacrifice this land: Destroy target nonbasic land.

Cloud of Faeries

Flying
When this creature enters, untap up to two lands.
Cycling {2} ({2}, Discard this card: Draw a card.)

Accumulated Knowledge

Draw a card, then draw cards equal to the number of cards named Accumulated Knowledge in all graveyards.

Brain Freeze

Target player mills three cards.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Hydroblast

Choose one —
• Counter target spell if it's red.
• Destroy target permanent if it's red.