Snap

Return target creature to its owner's hand. Untap up to two lands.

Snapback

You may exile a blue card from your hand rather than pay this spell's mana cost.
Return target creature to its owner's hand.

Silburlind Snapper

Silburlind Snapper can't attack unless you've cast a noncreature spell this turn.

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}.

Cold-Water Snapper

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

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.)

Stern Dismissal

Return target creature or enchantment an opponent controls to its owner's hand.

Counterspell

Spell Pierce

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

Vapor Snag

Return target creature to its owner's hand. Its controller loses 1 life.

Island

Snapping Drake

Flying (This creature can't be blocked except by creatures with flying or reach.)

Mistford River Turtle

Whenever Mistford River Turtle attacks, another target attacking non-Human creature can't be blocked this turn.