Soulsworn Jury

Defender (This creature can't attack.)
{1}{U}, Sacrifice Soulsworn Jury: Counter target creature spell.

Revolutionary Rebuff

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

Island

Lost in the Mist

Counter target spell. Return target permanent to its owner's hand.

Wizard Replica

Flying
{U}, Sacrifice Wizard Replica: Counter target spell unless its controller pays {2}.

Mirrorshell Crab

Ward {3} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.)
Channel — {2}{U}, Discard Mirrorshell Crab: Counter target spell or ability unless its controller pays {3}.

Disruptive Pitmage

{T}: Counter target spell unless its controller pays {1}.
Morph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Azorius Guildmage

{2}{W}: Tap target creature.
{2}{U}: Counter target activated ability. (Mana abilities can't be targeted.)

Reasonable Doubt

Counter target spell unless its controller pays {2}.
Suspect up to one target creature. (A suspected creature has menace and can't block.)

Vodalian Mage

{U}, {T}: Counter target spell unless its controller pays {1}.

Spiketail Drakeling

Flying
Sacrifice Spiketail Drakeling: Counter target spell unless its controller pays {2}.

Soul Read

Choose one —
• Counter target spell unless its controller pays {4}.
• Draw two cards.

Offering to Asha

Counter target spell unless its controller pays {4}. You gain 4 life.

Remove Soul

Plains

Disruptive Student

{T}: Counter target spell unless its controller pays {1}.

Ixidor's Will

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