Flash
Flying
When this creature enters, if you control another snow permanent, exile target permanent other than this creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

: This creature can't be blocked this turn.

Flying
Lightning Breath — When this creature enters, until your next turn, target creature an opponent controls gets -3/-0, up to one other target creature gets -2/-0, and up to one other target creature gets -1/-0.

Flying
Ward
Whenever you draw your second card each turn, put a +1/+1 counter on Blue Marvel.

: An opponent tells you a statement about themselves and secretly notes whether it's true or false. You guess which it is. If you guessed correctly, Blufferfish gets +2/+0 and can't be blocked this turn.

When Blurry Visionary enters, look at the top two cards of your library and put them back-to-back in the same sleeve with either card in front. They become a modal double-faced card for the rest of the game. Then put that card into your hand. (You can play either face of that double-faced card. Make sure to reset it when the game ends.)

You may have this creature enter as a copy of any creature card in a graveyard.

Power-up — : Put a +1/+1 counter on this creature and draw two cards.

Defender, haste
: Draw a card, then discard a card.

Flying
Spells your opponents cast that target this creature cost more to cast.

This creature can't be blocked as long as defending player controls an artifact.

When this creature attacks or blocks, sacrifice it at the beginning of the next end step.
Unearth

At the beginning of each player's upkeep, that player may put an artifact, creature, or land card from their hand onto the battlefield.

Flash
Flying
This creature can block only creatures with flying.

Flash
When this creature enters, untap another target creature you control.

When this creature enters, if you cast it from your hand, tap all nonblue creatures. Those creatures don't untap during their controllers' next untap steps.

Flying
Phasing

Flying
This creature gets +1/+1 as long as you control another blue creature.

Morph
When this creature is turned face up, each opponent skips their next untap step.

When this creature dies, change the base power and toughness of all creatures that dealt damage to it this turn to 0/2. (This effect lasts indefinitely.)

, : Reveal any number of blue cards in your hand. Counter target spell unless its controller pays for each card revealed this way.

Flash
When this creature enters, target creature an opponent controls gets -2/-0 until end of turn.

Flash
Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on this creature.

When Brinelin enters and whenever you cast a spell with mana value 6 or greater, you may return target nonland permanent to its owner's hand.
Partner

You may pay rather than pay this spell's mana cost.
Trample
At the beginning of your upkeep, you may draw two cards.

When this creature dies, put a shield counter on target creature you control.

Myriad
Whenever this creature deals combat damage to a player, you may draw a card.

At the beginning of combat on your turn, if you control a legendary Assassin, this creature gets +1/+0 until end of turn and can't be blocked this turn.

, : Draw X cards. Activate only as a sorcery.
: Transform Bruce Banner. Activate only as a sorcery.