Ephara's Dispersal

This spell costs {2} less to cast if it targets an attacking creature.
Return target creature to its owner's hand. Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Disruption Protocol

As an additional cost to cast this spell, tap an untapped artifact you control or pay {1}.
Counter target spell.

Mana Leak

Counter target spell unless its controller pays {3}.

Murmuring Mystic

Whenever you cast an instant or sorcery spell, create a 1/1 blue Bird Illusion creature token with flying.

Envelop

Didn't Say Please

Counter target spell. Its controller mills three cards.

Annul

Counter target artifact or enchantment spell.

Arcane Denial

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.
You draw a card at the beginning of the next turn's upkeep.

Dispel

Disdainful Stroke

Counter target spell with mana value 4 or greater.

Dissolve

Counter target spell. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Echoing Truth

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Deprive

As an additional cost to cast this spell, return a land you control to its owner's hand.
Counter target spell.

Boomerang

Return target permanent to its owner's hand.

Drown in Shapelessness

Return target creature to its owner's hand.

Disperse

Return target nonland permanent to its owner's hand.

Countervailing Winds

Counter target spell unless its controller pays {1} for each card in your graveyard.
Cycling {2} ({2}, Discard this card: Draw a card.)

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.)

Flash Counter

Depart the Realm

Return target nonland permanent to its owner's hand.
Foretell {U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Keep Safe

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

Essence Scatter

Disrupt

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