Impulse

Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Shardless Agent

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 in a random order.)

Atarka Efreet

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Atarka Efreet is turned face up, it deals 1 damage to any target.

Winding Constrictor

If one or more counters would be put on an artifact or creature you control, that many plus one of each of those kinds of counters are put on that permanent instead.
If you would get one or more counters, you get that many plus one of each of those kinds of counters instead.

Uncomfortable Chill

Creatures your opponents control get -2/-0 until end of turn.
Draw a card.

Filigree Familiar

When Filigree Familiar enters, you gain 2 life.
When Filigree Familiar dies, draw a card.

Take Down

Choose one —
• Take Down deals 4 damage to target creature with flying.
• Take Down deals 1 damage to each creature with flying.

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Mystic Retrieval

Return target instant or sorcery card from your graveyard to your hand.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Nightmare Unmaking

Choose one —
• Exile each creature with power greater than the number of cards in your hand.
• Exile each creature with power less than the number of cards in your hand.

Ghired’s Belligerence

Ghired’s Belligerence deals X damage divided as you choose among any number of target creatures. Whenever a creature dealt damage this way dies this turn, populate. (Create a token that’s a copy of a creature token you control.)

Wildfire Devils

When Wildfire Devils enters and at the beginning of your upkeep, choose a player at random. That player exiles an instant or sorcery card from their graveyard. Copy that card. You may cast the copy without paying its mana cost.

Repeated Reverberation

When you next cast an instant spell, cast a sorcery spell, or activate a loyalty ability this turn, copy that spell or ability twice. You may choose new targets for the copies.

Shifting Ceratops

This spell can’t be countered.
Protection from blue (This creature can’t be blocked, targeted, dealt damage, enchanted, or equipped by anything blue.)
: Shifting Ceratops gains your choice of reach, trample, or haste until end of turn.

Shifting Ceratops

This spell can’t be countered.
Protection from blue (This creature can’t be blocked, targeted, dealt damage, enchanted, or equipped by anything blue.)
: Shifting Ceratops gains your choice of reach, trample, or haste until end of turn.

Frost Lynx

When Frost Lynx enters, tap target creature an opponent controls. That creature doesn’t untap during its controller’s next untap step.

Unsummon

Return target creature to its owner’s hand.

Repeated Reverberation

When you next cast an instant spell, cast a sorcery spell, or activate a loyalty ability this turn, copy that spell or ability twice. You may choose new targets for the copies.

Repeated Reverberation

When you next cast an instant spell, cast a sorcery spell, or activate a loyalty ability this turn, copy that spell or ability twice. You may choose new targets for the copies.

Shifting Ceratops

This spell can’t be countered.
Protection from blue (This creature can’t be blocked, targeted, dealt damage, enchanted, or equipped by anything blue.)
: Shifting Ceratops gains your choice of reach, trample, or haste until end of turn.

Kess, Dissident Mage

Flying
Once during each of your turns, you may cast an instant or sorcery spell from your graveyard. If a spell cast this way would be put into your graveyard, exile it instead.

Pyrophobia

Pyrophobia deals 3 damage to target creature. Cowards can’t block this turn.