An Offer You Can't Refuse

Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

Countersquall

Counter target noncreature spell. Its controller loses 2 life.

Counterspell

Mana Leak

Counter target spell unless its controller pays {3}.

Absorb

Negate

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.

Render Silent

Counter target spell. Its controller can't cast spells this turn.

Swan Song

Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.

Permission Denied

Counter target noncreature spell. Your opponents can't cast noncreature spells this turn.