Diamond Knight

Vigilance (Attacking doesn't cause this creature to tap.)
As Diamond Knight enters, choose a color.
Whenever you cast a spell of the chosen color, put a +1/+1 counter on Diamond Knight.

Levitation

Cloak of Invisibility

Enchant creature
Enchanted creature has phasing and can't be blocked except by Walls. (It phases in or out before its controller untaps during each of their untap steps. While it's phased out, it's treated as though it doesn't exist.)

Vodalian Mage

{U}, {T}: Counter target spell unless its controller pays {1}.

Reef Pirates

Whenever Reef Pirates deals damage to an opponent, that player mills a card.

Blockade Runner

{U}: Blockade Runner can't be blocked this turn.

Gargoyle Sentinel

Defender (This creature can't attack.)
{3}: Until end of turn, Gargoyle Sentinel loses defender and gains flying.

Dandân

Dandân can't attack unless defending player controls an Island.
When you control no Islands, sacrifice Dandân.

Azimaet Drake

Flying
{U}: Azimaet Drake gets +1/+0 until end of turn. Activate only once each turn.

Sarcomite Myr

{2}: Sarcomite Myr gains flying until end of turn.
{2}, Sacrifice Sarcomite Myr: Draw a card.

Hammerhead Shark

Hammerhead Shark can't attack unless defending player controls an Island.

Favorable Winds

Creatures you control with flying get +1/+1.

Labyrinth Minotaur

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

Profane Memento

Whenever a creature card is put into an opponent's graveyard from anywhere, you gain 1 life.

Sleep

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

Bay Falcon

Sea Monster

Sea Monster can't attack unless defending player controls an Island.

Nephalia Seakite

Flash (You may cast this spell any time you could cast an instant.)
Flying

Spindrift Drake

Flying
At the beginning of your upkeep, sacrifice Spindrift Drake unless you pay {U}.

Wind Dancer

Flying
{T}: Target creature gains flying until end of turn.

Zuran Spellcaster

{T}: Zuran Spellcaster deals 1 damage to any target.

Soaring Seacliff

Soaring Seacliff enters tapped.
When Soaring Seacliff enters, target creature gains flying until end of turn.
{T}: Add {U}.

Crookclaw Transmuter

Flash
Flying
When Crookclaw Transmuter enters, switch target creature's power and toughness until end of turn.

Skywise Teachings

Whenever you cast a noncreature spell, you may pay {1}{U}. If you do, create a 2/2 blue Djinn Monk creature token with flying.

Prodigal Sorcerer

{T}: Prodigal Sorcerer deals 1 damage to any target.

Island

Pirate's Cutlass

When this Equipment enters, attach it to target Pirate you control.
Equipped creature gets +2/+1.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Benthic Explorers

{T}, Untap a tapped land an opponent controls: Add one mana of any type that land could produce.

Darting Merfolk

{U}: Return Darting Merfolk to its owner's hand.

Storm Crow

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

Elixir of Immortality

{2}, {T}: You gain 5 life. Shuffle Elixir of Immortality and your graveyard into their owner's library.

Man-o'-War

When Man-o'-War enters, return target creature to its owner's hand.

Infiltrator il-Kor

Shadow (This creature can block or be blocked by only creatures with shadow.)
Suspend 2—{1}{U} (Rather than cast this card from your hand, you may pay {1}{U} and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)