Lofty Denial

Counter target spell unless its controller pays {1}. If you control a creature with flying, counter that spell unless its controller pays {4} instead.

Insectile Aberration

Delver of Secrets

At the beginning of your upkeep, look at the top card of your library. You may reveal that card. If an instant or sorcery card is revealed this way, transform Delver of Secrets.

Delver of Secrets // Insectile Aberration

Disrupt

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

Annul

Counter target artifact or enchantment spell.

Rune Snag

Counter target spell unless its controller pays {2} plus an additional {2} for each card named Rune Snag in each graveyard.

Spell Pierce

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

Quench

Counter target spell unless its controller pays {2}.

Mana Leak

Counter target spell unless its controller pays {3}.

Miscalculation

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

Spell Rupture

Counter target spell unless its controller pays {X}, where X is the greatest power among creatures you control.

Steel Sabotage

Choose one —
• Counter target artifact spell.
• Return target artifact to its owner's hand.

Force Spike

Counter target spell unless its controller pays {1}.

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.

Counterspell

Island

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Deprive

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

Unwind

Counter target noncreature spell. Untap up to three lands.

Hydroblast

Choose one —
• Counter target spell if it's red.
• Destroy target permanent if it's red.

Memory Lapse

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.