Withering Boon

As an additional cost to cast this spell, pay 3 life.
Counter target creature spell.

Extinguish

Mystic Denial

Counter target creature or sorcery spell.

Jaded Response

Counter target spell if it shares a color with a creature you control.

Override

Counter target spell unless its controller pays {1} for each artifact you control.

Intervene

Counter target spell that targets a creature.

Confound

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

Disrupt

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

Ixidor's Will

Counter target spell unless its controller pays {2} for each Wizard on the battlefield.

Rethink

Counter target spell unless its controller pays {X}, where X is its mana value.

Thoughtbind

Counter target spell with mana value 4 or less.

Dispersal Shield

Counter target spell if its mana value is less than or equal to the highest mana value among permanents you control.

Miscalculation

Counter target spell unless its controller pays {2}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Artifact Blast

Illumination

Counter target artifact or enchantment spell. Its controller gains life equal to its mana value.

False Summoning

Abjure

As an additional cost to cast this spell, sacrifice a blue permanent.
Counter target spell.

Quash

Counter target instant or sorcery spell. Search its controller's graveyard, hand, and library for all cards with the same name as that spell and exile them. Then that player shuffles.

Rites of Refusal

Discard any number of cards. Counter target spell unless its controller pays {3} for each card discarded this way.

Flash Counter

Hindering Touch

Counter target spell unless its controller pays {2}.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Grip of Amnesia

Counter target spell unless its controller exiles all cards from their graveyard.
Draw a card.

Last Word

This spell can't be countered.
Counter target spell.

Force Void

Counter target spell unless its controller pays {1}.
Draw a card at the beginning of the next turn's upkeep.

Oppressive Will

Counter target spell unless its controller pays {1} for each card in your hand.

Preemptive Strike

Minamo's Meddling

Counter target spell. That spell's controller reveals their hand, then discards each card with the same name as a card spliced onto that spell.

Forbid

Buyback—Discard two cards. (You may discard two cards in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)
Counter target spell.

Suffocating Blast

Counter target spell and Suffocating Blast deals 3 damage to target creature.

Spelljack

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. You may play it without paying its mana cost for as long as it remains exiled. (If it has X in its mana cost, X is 0.)