Keyword: Flash

Flash
Flying
When Rattlechains enters the battlefield, target Spirit gains hexproof until end of turn.
You may cast Spirit spells as though they had flash.

Flash (You may cast this spell any time you could cast an instant.)
Flying
Whenever Nebelgast Herald or another Spirit enters the battlefield under your control, tap target creature an opponent controls.

Flash (You may cast this spell any time you could cast an instant.)
When Affa Guard Hound enters the battlefield, target creature gets +0/+3 until end of turn.

Flash (You may cast this spell any time you could cast an instant.)
Flying
When Crookclaw Transmuter enters the battlefield, switch target creature’s power and toughness until end of turn.

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

Flash

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

Flash
Enchant creature
Enchanted creature gets +1/+2.

Flash
Flying
When Angel of the Dire Hour enters the battlefield, if you cast it from your hand, exile all attacking creatures.

Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
When Capture Sphere enters the battlefield, tap enchanted creature.
Enchanted creature doesn’t untap during its controller’s untap step.

Flash
When Teferi’s Wavecaster enters the battlefield, you may search your library and/or graveyard for a card named Teferi, Timeless Voyager, reveal it, and put it into your hand. If you search your library this way, shuffle it.

Flash
When Liliana’s Standard Bearer enters the battlefield, draw X cards, where X is the number of creatures that died under your control this turn.

Flash
When Liliana’s Standard Bearer enters the battlefield, draw X cards, where X is the number of creatures that died under your control this turn.

Flash
Whenever Thieves’ Guild Enforcer or another Rogue enters the battlefield under your control, each opponent mills two cards.
As long as an opponent has eight or more cards in their graveyard, Thieves’ Guild Enforcer gets +2/+1 and has deathtouch.

Flash
When Niambi, Esteemed Speaker enters the battlefield, you may return another target creature you control to its owner’s hand. If you do, you gain life equal to that creature’s converted mana cost.
, , Discard a legendary card: Draw two cards.

Flash
When Niambi, Esteemed Speaker enters the battlefield, you may return another target creature you control to its owner’s hand. If you do, you gain life equal to that creature’s converted mana cost.
, , Discard a legendary card: Draw two cards.

Flash
If a nontoken creature would enter the battlefield and it wasn’t cast, exile it instead.

Flash
If a nontoken creature would enter the battlefield and it wasn’t cast, exile it instead.

Flash
If a nontoken creature would enter the battlefield and it wasn’t cast, exile it instead.

Flash
When Liliana’s Standard Bearer enters the battlefield, draw X cards, where X is the number of creatures that died under your control this turn.

Flash
When Niambi, Esteemed Speaker enters the battlefield, you may return another target creature you control to its owner’s hand. If you do, you gain life equal to that creature’s converted mana cost.
, , Discard a legendary card: Draw two cards.

Flash
Whenever Thieves’ Guild Enforcer or another Rogue enters the battlefield under your control, each opponent mills two cards.
As long as an opponent has eight or more cards in their graveyard, Thieves’ Guild Enforcer gets +2/+1 and has deathtouch.

Flash
Whenever Thieves’ Guild Enforcer or another Rogue enters the battlefield under your control, each opponent mills two cards.
As long as an opponent has eight or more cards in their graveyard, Thieves’ Guild Enforcer gets +2/+1 and has deathtouch.

Flash
If a nontoken creature would enter the battlefield and it wasn’t cast, exile it instead.

Flash
Whenever Thieves’ Guild Enforcer or another Rogue enters the battlefield under your control, each opponent mills two cards.
As long as an opponent has eight or more cards in their graveyard, Thieves’ Guild Enforcer gets +2/+1 and has deathtouch.