Keyword: Flash

Flash
Bloodcrazed Paladin enters the battlefield with a +1/+1 counter on it for each creature that died this turn.

Flash
Flying
Dreamcaller Siren can block only creatures with flying.
When Dreamcaller Siren enters the battlefield, if you control another Pirate, tap up to two target nonland permanents.

Flash
Enrage — Whenever Snapping Sailback is dealt damage, put a +1/+1 counter on it. (It must survive the damage to get the counter.)

Flash
Bloodcrazed Paladin enters the battlefield with a +1/+1 counter on it for each creature that died this turn.

Flash
Flying, trample, haste
When Nira, Hellkite Duelist enters the battlefield, the next time you would lose the game this turn, instead draw three cards and your life total becomes 5.

Flash (You may cast this spell any time you could cast an instant.)
When Seht’s Tiger enters the battlefield, you gain protection from the color of your choice until end of turn. (You can’t be targeted, dealt damage, or enchanted by anything of the chosen color.)

Flash
If an opponent would draw two or more cards, instead you and that player each draw a card.

Flash
When Portal Mage enters the battlefield during the declare attackers step, you may reselect which player or planeswalker target attacking creature is attacking. (It can’t attack its controller or its controller’s planeswalkers.)

Flash
Flying
Cycling (, Discard this card: Draw a card.)
When you cycle Nimble Obstructionist, counter target activated or triggered ability you don’t control.

Flash
Flying

Flash
Enchant creature you control
When Saving Grace enters the battlefield, all damage that would be dealt this turn to you and permanents you control is dealt to enchanted creature instead.
Enchanted creature gets +0/+3.

Flash
Flying
Cycling (, Discard this card: Draw a card.)
When you cycle Nimble Obstructionist, counter target activated or triggered ability you don’t control.

Flash
When Dualcaster Mage enters the battlefield, copy target instant or sorcery spell. You may choose new targets for the copy.

Flash (You may cast this spell any time you could cast an instant.)
When Deceiver Exarch enters the battlefield, choose one —
• Untap target permanent you control.
• Tap target permanent an opponent controls.

Flash (You may cast this spell any time you could cast an instant.)
, Sacrifice Leonin Bladetrap: It deals 2 damage to each attacking creature without flying.

Flash (You may cast this spell any time you could cast an instant.)
Reach
When Great Oak Guardian enters the battlefield, creatures target player controls get +2/+2 until end of turn. Untap them.

Flash
Reach
When Cloudthresher enters the battlefield, it deals 2 damage to each creature with flying and each player.
Evoke (You may cast this spell for its evoke cost. If you do, it’s sacrificed when it enters the battlefield.)

Flash (You may cast this spell any time you could cast an instant.)
Flying
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Flash
When Dualcaster Mage enters the battlefield, copy target instant or sorcery spell. You may choose new targets for the copy.

Flash
If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Flash (You may cast this spell any time you could cast an instant.)
Whenever a creature deals combat damage to you, if Hixus, Prison Warden entered the battlefield this turn, exile that creature until Hixus leaves the battlefield. (That creature returns under its owner’s control.)

Flash
Flying
If an opponent would search a library, that player searches the top four cards of that library instead.

Flash
Double strike, vigilance, haste
Other creatures you control have haste.
, : Untap another target creature.

Flash
Flying
If an opponent would search a library, that player searches the top four cards of that library instead.

Flash
When Cast Out enters the battlefield, exile target nonland permanent an opponent controls until Cast Out leaves the battlefield.
Cycling (, Discard this card: Draw a card.)