Negate

Mind Spring

Serpent of the Endless Sea

Serpent of the Endless Sea's power and toughness are each equal to the number of Islands you control.
This creature can't attack unless defending player controls an Island.

Ice Cage

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.
When enchanted creature becomes the target of a spell or ability, destroy this Aura.

Tome Scour

Kraken's Eye

Whenever a player casts a blue spell, you may gain 1 life.

Telepathy

Your opponents play with their hands revealed.

Merfolk Looter

Levitation

Air Elemental

Horned Turtle

Merfolk Sovereign

Other Merfolk creatures you control get +1/+1.
{T}: Target Merfolk creature can't be blocked this turn.

Flashfreeze

Illusionary Servant

Flying
When this creature becomes the target of a spell or ability, sacrifice it.

Convincing Mirage

Enchant land
As this Aura enters, choose a basic land type.
Enchanted land is the chosen type.

Zephyr Sprite

Sleep

Tap all creatures target player controls. Those creatures don't untap during that player's next untap step.

Cancel

Disorient

Target creature gets -7/-0 until end of turn.

Snapping Drake

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

Alluring Siren

{T}: Target creature an opponent controls attacks you this turn if able.

Wind Drake

Sage Owl

Flying
When this creature enters, look at the top four cards of your library, then put them back in any order.

Divination

Wall of Frost

Defender
Whenever this creature blocks a creature, that creature doesn't untap during its controller's next untap step.

Clone

You may have this creature enter as a copy of any creature on the battlefield.

Phantom Warrior

Coral Merfolk

Unsummon

Return target creature to its owner's hand.

Mind Control

Enchant creature
You control enchanted creature.

Essence Scatter

Djinn of Wishes

Flying
This creature enters with three wish counters on it.
{2}{U}{U}, Remove a wish counter from this creature: Reveal the top card of your library. You may play that card without paying its mana cost. If you don't, exile it.