Phantom Warrior

Serpent of the Endless Sea

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

Mind Control

Enchant creature
You control enchanted creature.

Sleep

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

Unsummon

Return target creature to its owner's hand.

Kraken's Eye

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

Horned Turtle

Coral Merfolk

Sage Owl

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

Negate

Disorient

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

Wall of Frost

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

Convincing Mirage

Enchant land
As Convincing Mirage enters, choose a basic land type.
Enchanted land is the chosen type.

Tome Scour

Flashfreeze

Levitation

Zephyr Sprite

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 Ice Cage.

Djinn of Wishes

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

Merfolk Sovereign

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

Alluring Siren

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

Snapping Drake

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

Jump

Target creature gains flying until end of turn.

Wind Drake

Essence Scatter

Clone

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

Divination

Cancel

Merfolk Looter

Mind Spring

Telepathy

Your opponents play with their hands revealed.

Air Elemental

Illusionary Servant

Flying
When Illusionary Servant becomes the target of a spell or ability, sacrifice it.