Keyword: Flash

Flash
Whenever an opponent searches their library, you gain 1 life and draw a card.

Flash
Whenever an opponent searches their library, you gain 1 life and draw a card.

Flash
Ward
Probing Telepathy — Whenever a creature entering under an opponent’s control causes a triggered ability of that creature to trigger, you may copy that ability. You may choose new targets for the copy.

Flash
You may have Mocking Doppelganger enter as a copy of a creature an opponent controls, except it has “Other creatures with the same name as this creature are goaded.” (They attack each combat if able and attack a player other than you if able.)

Flash
When Green Slime enters, counter target activated or triggered ability from an artifact or enchantment source. If a permanent’s ability is countered this way, destroy that permanent.
Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Flash
Cascade
Reach
When Sweet-Gum Recluse enters, put three +1/+1 counters on each of any number of target creatures that entered this turn.

Flash
When Banishment enters, exile target nonland permanent an opponent controls and all other nonland permanents your opponents control with the same name as that permanent until Banishment leaves the battlefield.

Flash
, Sacrifice Dire Mimic: Add one mana of any color.
: Dire Mimic becomes a Shapeshifter artifact creature with base power and toughness 5/5 until end of turn.

Flash
When Javelin of Lightning enters, attach it to target creature you control.
During your turn, equipped creature gets +2/+0 and has first strike.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Flash
Flying
Psychic Defense — When Githzerai Monk enters, tap all creatures you don’t control.

Flash
When Green Slime enters, counter target activated or triggered ability from an artifact or enchantment source. If a permanent’s ability is countered this way, destroy that permanent.
Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Flash
Flying
When Windshaper Planetar enters during the declare attackers step, for each attacking creature, you may reselect which player or permanent that creature is attacking. (It can’t attack its controller or their permanents.)

Flash
Ward
Probing Telepathy — Whenever a creature entering under an opponent’s control causes a triggered ability of that creature to trigger, you may copy that ability. You may choose new targets for the copy.

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

Flash
This spell can’t be countered.
Whenever you cast a spell, choose up to one —
• Return target spell you don’t control to its owner’s hand.
• Return target nonland permanent to its owner’s hand.

Flash
Flying
When Nebelgast Intruder enters, up to one target creature an opponent controls gets -2/-0 until end of turn.

Flash
Enchant creature
When Howl of the Hunt enters, if enchanted creature is a Wolf or Werewolf, untap that creature.
Enchanted creature gets +2/+2 and has vigilance.

Flash
Flying

Flash
Flying
Exploit (When this creature enters, you may sacrifice a creature.)
When this creature exploits a creature, counter target spell, activated ability, or triggered ability.

Flash
Enchant creature you control
When Cradle of Safety enters, enchanted creature gains hexproof until end of turn. (It can’t be the target of spells or abilities your opponents control.)
Enchanted creature gets +1/+1.

Flash
Reach

Flash
Flying
When Spectral Adversary enters, you may pay any number of times. When you pay this cost one or more times, put that many +1/+1 counters on Spectral Adversary, then up to that many other target artifacts, creatures, and/or enchantments phase out.

Flash
, Sacrifice this creature: Destroy target artifact or enchantment.

Flash
Flying
When Loyal Gryff enters, you may return another creature you control to its owner’s hand.