Fireblast

Instant

You may sacrifice two Mountains rather than pay Fireblast's mana cost.

Fireblast deals 4 damage to target creature or player.

Embermages aren't well known for their diplomatic skills.

Spinning Darkness

Instant

You may exile the top three black cards of your graveyard rather than pay Spinning Darkness's mana cost.

Spinning Darkness deals 3 damage to target nonblack creature. You gain 3 life.

Tsabo's Decree

Instant

Choose a creature type. Target player reveals his or her hand and discards all creature cards of that type. Then destroy all creatures of that type that player controls. They can't be regenerated.

Cauldron Dance

Instant

Cast Cauldron Dance only during combat.

Return target creature card from your graveyard to the battlefield. That creature gains haste. Return it to your hand at the beginning of the next end step.

You may put a creature card from your hand onto the battlefield. That creature gains haste. Its controller sacrifices it at the beginning of the next end step.

Spinal Embrace

Instant

Cast Spinal Embrace only during combat.

Untap target creature you don't control and gain control of it. It gains haste until end of turn. At the beginning of the next end step, sacrifice it. If you do, you gain life equal to its toughness.

Spelljack

Instant

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. You may play it without paying its mana cost for as long as it remains exiled. (If it has X in its mana cost, X is 0.)

Betrayal of Flesh

Instant

Choose one - Destroy target creature; or return target creature card from your graveyard to the battlefield.

Entwine-Sacrifice three lands. (Choose both if you pay the entwine cost.)

Murderous Spoils

Instant

Destroy target nonblack creature. It can't be regenerated. You gain control of all Equipment that was attached to it. (This effect lasts indefinitely.)

Scavengers are always the first to pay their respects.

Into Thin Air

Instant

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Return target artifact to its owner's hand.

"Perhaps I should take Mirrodin apart and begin again."
-Memnarch

Reweave

Instant - Arcane

Target permanent's controller sacrifices it. If he or she does, that player reveals cards from the top of his or her library until he or she reveals a permanent card that shares a card type with the sacrificed permanent, puts that card onto the battlefield, then shuffles his or her library.

Splice onto Arcane (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Pull Under

Instant - Arcane

Target creature gets -5/-5 until end of turn.

"Although nowhere on Kamigawa was safe during the war, the Takenuma Swamp was the most horrifying. The rotting bamboo itself rebelled against its mortal inhabitants, pulling them into unmarked graves."
-Observations of the Kami War

Overwhelming Intellect

Instant

Counter target creature spell. Draw cards equal to that spell's converted mana cost.

"My brain hurts."

Flash Conscription

Instant

Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn. If was spent to cast Flash Conscription, the creature gains "Whenever this creature deals combat damage, you gain that much life" until end of turn.

Dryad's Caress

Instant

You gain 1 life for each creature on the battlefield. If was spent to cast Dryad's Caress, untap all creatures you control.

"I awoke to the face of beauty, my body fully healed. In that moment I knew my destiny was the Conclave's to shape."
-Rogad, Selesnya initiate

Dark Withering

Instant

Destroy target nonblack creature.

Madness (If you discard this card, you may cast it for its madness cost instead of putting it into your graveyard.)

Haunting Hymn

Instant

Target player discards two cards. If you cast this spell during your main phase, that player discards four cards instead.

The hymn's melody has persisted since Tourach's time, but the words changed to invoke the phobias of each listener.

Death Rattle

Instant

Delve (You may exile any number of cards from your graveyard as you cast this spell. It costs less to cast for each card exiled this way.)

Destroy target nongreen creature. It can't be regenerated.

Chronostutter

Instant

Put target creature into its owner's library second from the top.

Timing is everything.

Blastfire Bolt

Instant

Blastfire Bolt deals 5 damage to target creature. Destroy all Equipment attached to that creature.

"Encase yourself in the most elaborate armor, and cower behind the heaviest shield. I would hate for you to feel helpless."
-Korig the Ruiner

Waterwhirl

Instant

Return up to two target creatures to their owners' hands.

"Be as water: untamed and unheld, yet inexorably flowing toward a greater goal."
-Shensu, Riverwheel mystic

Become Immense

Instant

Delve (Each card you exile from your graveyard while casting this spell pays for .)

Target creature gets +6/+6 until end of turn.

Flying Crane Technique

Instant

Untap all creatures you control. They gain flying and double strike until end of turn.

There are many Jeskai styles: Riverwalk imitates flowing water, Dragonfist the ancient hellkites, and Flying Crane the wild aven of the high peaks.

Channel Harm

Instant

Prevent all damage that would be dealt to you and permanents you control this turn by sources you don't control. If damage is prevented this way, you may have Channel Harm deal that much damage to target creature.

Supplant Form

Instant

Return target creature to its owner's hand. You put a token onto the battlefield that's a copy of that creature.

"Ice can be shaped to any form, even the whisper of a memory."
-Mytha, Temur shaman

Will of the Naga

Instant

Delve (Each card you exile from your graveyard while casting this spell pays for .)

Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.

The charm of a naga is undeniable.

Resupply

Instant

You gain 6 life.

Draw a card.

"If the scalelords are the brains of Dromoka's army, the supply caravans are its beating heart."
-Baihir, Dromoka mage

Dragonlord's Prerogative

Instant

As an additional cost to cast Dragonlord's Prerogative, you may reveal a Dragon card from your hand.

If you revealed a Dragon card or controlled a Dragon as you cast Dragonlord's Prerogative, Dragonlord's Prerogative can't be countered.

Draw four cards.

Grip of Desolation

Instant

Devoid (This card has no color.)

Exile target creature and target land.

As the hand closed, there was first terror, then numbness, and finally nothingness.

Vanishment

Instant

Put target nonland permanent on top of its owner's library.

Miracle (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

Aggravate

Instant

Aggravate deals 1 damage to each creature target player controls. Each creature dealt damage this way attacks this turn if able.

"Barbarians! They burned my favorite chair! We'll kill them all!"
-Anje Falkenrath

Chandra's Fury

Instant

Chandra's Fury deals 4 damage to target player and 1 damage to each creature that player controls.

"I asked if they wanted to do things the easy way. I meant easy for me."

Lost in the Mist

Instant

Counter target spell. Return target permanent to its owner's hand.

The secrets she carried could have saved many lives, but they quietly drowned with her.

Psychic Spiral

Instant

Shuffle all cards from your graveyard into your library. Target player puts that many cards from the top of his or her library into his or her graveyard.

An elocutor forces criminals to confess to the laws they merely intended to break.

Fall of the Gavel

Instant

Counter target spell. You gain 5 life.

"My ruling is final. Order is upheld. Justice is done."

Thoughtflare

Instant

Draw four cards, then discard two cards.

"If this is thinking, I don't know what I was doing before."

Ad Nauseam

Instant

Reveal the top card of your library and put that card into your hand. You lose life equal to its converted mana cost. You may repeat this process any number of times.

When the task spilled over into undeath, he stopped calling it his life's work.

Skeletonize

Instant

Skeletonize deals 3 damage to target creature. When a creature dealt damage this way dies this turn, put a 1/1 black Skeleton creature token onto the battlefield with ": Regenerate this creature."

Fire burns away both flesh and freedom.

Second Thoughts

Instant

Exile target attacking creature.

Draw a card.

It suddenly dawned on Jorin that farming was quite a noble profession.

Fervent Denial

Instant

Counter target spell.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

"Your tenacity is admirable. And futile."
-Emperor Aboshan

Thermal Blast

Instant

Thermal Blast deals 3 damage to target creature.

Threshold - Thermal Blast deals 5 damage to that creature instead if seven or more cards are in your graveyard.