Thunderclap Wyvern

Flash (You may cast this spell any time you could cast an instant.)
Flying
Other creatures you control with flying get +1/+1.

Glorious Protector

Flash
Flying
When Glorious Protector enters the battlefield, you may exile any number of non-Angel creatures you control until Glorious Protector leaves the battlefield.
Foretell

Ice-Fang Coatl

Flash
Flying
When Ice-Fang Coatl enters the battlefield, draw a card.
Ice-Fang Coatl has deathtouch as long as you control at least three other snow permanents.

Brinebarrow Intruder

Flash
When Brinebarrow Intruder enters the battlefield, target creature an opponent controls gets -2/-0 until end of turn.

Jarl of the Forsaken

Flash
When Jarl of the Forsaken enters the battlefield, destroy target creature or planeswalker an opponent controls that was dealt damage this turn.
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.)

Sigrid, God-Favored

Flash
First strike, protection from God creatures
When Sigrid, God-Favored enters the battlefield, exile up to one target attacking or blocking creature until Sigrid leaves the battlefield.

Cosmos Charger

Flash
Flying
Foretelling cards from your hand costs less and can be done on any player’s turn.
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.)

Glorious Protector

Flash
Flying
When Glorious Protector enters the battlefield, you may exile any number of non-Angel creatures you control until Glorious Protector leaves the battlefield.
Foretell

Nymris, Oona’s Trickster

Flash
Flying
Whenever you cast your first spell during each opponent’s turn, look at the top two cards of your library. Put one of those cards into your hand and the other into your graveyard.

Nymris, Oona’s Trickster

Flash
Flying
Whenever you cast your first spell during each opponent’s turn, look at the top two cards of your library. Put one of those cards into your hand and the other into your graveyard.

Shimmer Myr

Flash
You may cast artifact spells as though they had flash.

Sweet-Gum Recluse

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

Sweet-Gum Recluse

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

Opposition Agent

Flash
You control your opponents while they’re searching their libraries.
While an opponent is searching their library, they exile each card they find. You may play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast them.

Elder Deep-Fiend

Flash
Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s converted mana cost.)
When you cast this spell, tap up to four target permanents.

Hullbreacher

Flash
If an opponent would draw a card except the first one they draw in each of their draw steps, instead you create a Treasure token. (It’s an artifact with “, Sacrifice this artifact: Add one mana of any color.”)

Spontaneous Mutation

Flash
Enchant creature
Enchanted creature gets -X/-0, where X is the number of cards in your graveyard.

Opposition Agent

Flash
You control your opponents while they’re searching their libraries.
While an opponent is searching their library, they exile each card they find. You may play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast them.

Dualcaster Mage

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

Benevolent Blessing

Flash
Enchant creature
As Benevolent Blessing enters the battlefield, choose a color.
Enchanted creature has protection from the chosen color. This effect doesn’t remove Auras and Equipment you control that are already attached to it.

Hullbreacher

Flash
If an opponent would draw a card except the first one they draw in each of their draw steps, instead you create a Treasure token. (It’s an artifact with “, Sacrifice this artifact: Add one mana of any color.”)

Sakashima’s Protege

Flash
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)
You may have Sakashima’s Protege enter the battlefield as a copy of any permanent that entered the battlefield this turn.

Sakashima’s Protege

Flash
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)
You may have Sakashima’s Protege enter the battlefield as a copy of any permanent that entered the battlefield this turn.