Spell Pierce

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

Negate

Miscast

Counter target instant or sorcery spell unless its controller pays {3}.

Naiad of Hidden Coves

During turns other than yours, spells you cast cost {1} less to cast.

Archaeomancer

When Archaeomancer enters, return target instant or sorcery card from your graveyard to your hand.

Baral, Chief of Compliance

Instant and sorcery spells you cast cost {1} less to cast.
Whenever a spell or ability you control counters a spell, you may draw a card. If you do, discard a card.

Counterspell

Wash Away

Cleave {1}{U}{U} (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)
Counter target spell [that wasn't cast from its owner's hand].

Haughty Djinn

Flying
Haughty Djinn's power is equal to the number of instant and sorcery cards in your graveyard.
Instant and sorcery spells you cast cost {1} less to cast.

Interdict

Counter target activated ability from an artifact, creature, enchantment, or land. That permanent's activated abilities can't be activated this turn. (Mana abilities can't be targeted.)
Draw a card.

Disdainful Stroke

Counter target spell with mana value 4 or greater.

Wavebreak Hippocamp

Whenever you cast your first spell during each opponent's turn, draw a card.

Minor Misstep

Counter target spell with mana value 1 or less.

Nullify

Keep Safe

Counter target spell that targets a permanent you control.
Draw a card.

Envelop

Runeboggle

Counter target spell unless its controller pays {1}.
Draw a card.

Mana Leak

Counter target spell unless its controller pays {3}.

Rewind

Counter target spell. Untap up to four lands.

Sage's Dousing

Counter target spell unless its controller pays {3}. If you control a Wizard, draw a card.

Annul

Counter target artifact or enchantment spell.

Niblis of Frost

Flying
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast an instant or sorcery spell, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

Disrupt

Counter target instant or sorcery spell unless its controller pays {1}.
Draw a card.

Mystic Confluence

Choose three. You may choose the same mode more than once.
• Counter target spell unless its controller pays {3}.
• Return target creature to its owner's hand.
• Draw a card.

Dream Fracture

Counter target spell. Its controller draws a card.
Draw a card.

Turn Aside

Counter target spell that targets a permanent you control.

Tale's End

Counter target activated ability, triggered ability, or legendary spell.

Dispel

Knights of Dol Amroth

Whenever you draw your second card each turn, put a +1/+1 counter on Knights of Dol Amroth.

Halt Order

Counter target artifact spell.
Draw a card.

Squelch

Counter target activated ability. (Mana abilities can't be targeted.)
Draw a card.

Overwhelming Intellect

Counter target creature spell. Draw cards equal to that spell's mana value.

Essence Capture

Counter target creature spell. Put a +1/+1 counter on up to one target creature you control.

Mesmeric Glare

Counter target spell with mana value 3 or less. (Then exile this card. You may cast the creature later from exile.)

Hypnotic Sprite

Hypnotic Sprite // Mesmeric Glare

Unwind

Counter target noncreature spell. Untap up to three lands.

Confound

Counter target spell that targets a creature.
Draw a card.

Exclude

Counter target creature spell.
Draw a card.

Brineborn Cutthroat

Flash (You may cast this spell any time you could cast an instant.)
Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on Brineborn Cutthroat.

Lullmage Mentor

Whenever a spell or ability you control counters a spell, you may create a 1/1 blue Merfolk creature token.
Tap seven untapped Merfolk you control: Counter target spell.

Archmage's Charm

Choose one —
• Counter target spell.
• Target player draws two cards.
• Gain control of target nonland permanent with mana value 1 or less.