Reach Through Mists

Instant - Arcane

Draw a card.

"Know one part of the name, obsession begins. Know two parts, paranoia sets in. Know three parts, madness descends. Know all, and only the kami know what will become of you."
-Lady Azami

Unnatural Speed

Instant - Arcane

Target creature gains haste until end of turn.

"How can we hope to match the speed of lightning? The fury of storms? The power of mountains? The answer is simple. We cannot. I advise against this war."
-Sensei Hisoka, letter to Lord Konda

Kodama's Might

Instant - Arcane

Target creature gets +2/+2 until end of turn.

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.)

Hundred-Talon Strike

Instant - Arcane

Target creature gets +1/+0 and gains first strike until end of turn.

Splice onto Arcane-Tap an untapped white creature you control. (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.)

Pure Intentions

Instant - Arcane

Whenever a spell or ability an opponent controls causes you to discard cards this turn, return those cards from your graveyard to your hand.

When a spell or ability an opponent controls causes you to discard Pure Intentions, return Pure Intentions from your graveyard to your hand at the beginning of the next end step.

Spiritual Visit

Instant - Arcane

Put a 1/1 colorless Spirit creature token onto the battlefield.

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.)

Cut the Earthly Bond

Instant - Arcane

Return target enchanted permanent to its owner's hand.

"The more kami that passed through the veil that separated them from our world, the weaker that veil became, threatening to tear into tatters at the slightest pressure."
-The History of Kamigawa

One with Nothing

Instant

Discard your hand.

When nothing remains, everything is equally possible.

Into the Fray

Instant - Arcane

Target creature attacks this turn if able.

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.)

Festival of the Guildpact

Instant

Prevent the next X damage that would be dealt to you this turn.

Draw a card.

Everyone knows that violence at the Festival brings the worst of luck, so for at least one day a year arms are laid down in favor of brimming goblets.

Wojek Siren

Instant

Radiance - Target creature and each other creature that shares a color with it get +1/+1 until end of turn.

It is the call to arms, the call to fury, the call to blood.

Dizzy Spell

Instant

Target creature gets -3/-0 until end of turn.

Transmute (, Discard this card: Search your library for a card with the same converted mana cost as this card, reveal it, and put it into your hand. Then shuffle your library. Transmute only as a sorcery.)

Darkblast

Instant

Target creature gets -1/-1 until end of turn.

Dredge 3 (If you would draw a card, instead you may put exactly three cards from the top of your library into your graveyard. If you do, return this card from your graveyard to your hand. Otherwise, draw a card.)

Disembowel

Instant

Destroy target creature with converted mana cost X.

"We thought we found the victim's clothes lumped in the street. As it turned out, it was the victim, insides sucked out-just a sack of skin and robes."
-Agrus Kos

Surge of Zeal

Instant

Radiance - Target creature and each other creature that shares a color with it gain haste until end of turn.

"If only my poxes were as infectious as their zealotry."
-Savra

Gather Courage

Instant

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Target creature gets +2/+2 until end of turn.

Gigadrowse

Instant

Replicate (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Tap target permanent.

Quicken

Instant

The next sorcery card you cast this turn can be cast as though it had flash. (It can be cast any time you could cast an instant.)

Draw a card.

A skilled Izzet chronarch can carry out an epic vendetta between the fall of one hourglass grain and the next.

Repeal

Instant

Return target nonland permanent with converted mana cost X to its owner's hand.

Draw a card.

"Your deed cannot be undone. You, however, can be."
-Agosto, Azorius imperator

Valor Made Real

Instant

Target creature can block any number of creatures this turn.

"As my father taught, ‘Training will raise your shield to the blow, but courage fills the gaps the shield leaves open.'"

Spell Snare

Instant

Counter target spell with converted mana cost 2.

Every culture has its unlucky numbers. In a city where you're either alone, in a crowd, or being stabbed in the back, two is the worst number of all.

Weight of Spires

Instant

Weight of Spires deals damage to target creature equal to the number of nonbasic lands that creature's controller controls.

"Finally, a good use for an Azorius courthouse."
-Ghut Rak, Gruul guildmage

Angel's Grace

Instant

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

You can't lose the game this turn and your opponents can't win the game this turn. Until end of turn, damage that would reduce your life total to less than 1 reduces it to 1 instead.

Pull from Eternity

Instant

Put target face-up exiled card into its owner's graveyard.

It is best to conquer dragons before they hatch.
-Femeref adage

Clockspinning

Instant

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)

Choose a counter on target permanent or suspended card. Remove that counter from that permanent or card or put another of those counters on it.

Moonlace

Instant

Target spell or permanent becomes colorless.

Once a vision of constancy in the sky, the moon had long been hidden from view by the haze that chokes the heavens. The very sight of it had become a sign that change was in the air.

Spell Burst

Instant

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)

Counter target spell with converted mana cost X.

The brutish mage's version of thinking.

Lightning Axe

Instant

As an additional cost to cast Lightning Axe, discard a card or pay .

Lightning Axe deals 5 damage to target creature.

"A gargoyle's meat can be carved with an ordinary cleaver, but for its petrous hide . . ."
-Asmoranomardicadaistinaculdacar,
The Underworld Cookbook

Might of Old Krosa

Instant

Target creature gets +2/+2 until end of turn. If you cast this spell during your main phase, that creature gets +4/+4 until end of turn instead.

Sometimes even humble forest creatures were gifted with mighty emanations from the past.

Molder

Instant

Destroy target artifact or enchantment with converted mana cost X. It can't be regenerated. You gain X life.

"The forests have succumbed to ruin, but the spirit of Krosa remains alive and vital in these devouring spores."
-Zyd, Kamahlite druid

Sprout

Instant

Put a 1/1 green Saproling creature token onto the battlefield.

Centuries of temporal strife had stripped Dominaria of its natural defenses, but nature fought back with armies constructed of little more than grime and sunlight.

Thrill of the Hunt

Instant

Target creature gets +1/+2 until end of turn.

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

Rebuff the Wicked

Instant

Counter target spell that targets a permanent you control.

"I cannot teach you their brand of magic, but I can teach you how to defend against it."
-Tavalus, priest of Korlis

Mana Tithe

Instant

Counter target spell unless its controller pays .

"Those who seek to upset the balance must be taxed for such ambitions."
-Verithain, mesa high priest

Pongify

Instant

Destroy target creature. It can't be regenerated. That creature's controller puts a 3/3 green Ape creature token onto the battlefield.

Some spellcrafting mistakes go on to become spells of their own.

Venarian Glimmer

Instant

Target player reveals his or her hand. You choose a nonland card with converted mana cost X or less from it. That player discards that card.

Dream of nothing, and wake to a dream come true.

Piracy Charm

Instant

Choose one - Target creature gains islandwalk until end of turn; or target creature gets +2/-1 until end of turn; or target player discards a card.

Extirpate

Instant

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for all cards with the same name as that card and exile them. Then that player shuffles his or her library.

Midnight Charm

Instant

Choose one - Midnight Charm deals 1 damage to target creature and you gain 1 life; or target creature gains first strike until end of turn; or tap target creature.

Timecrafting

Instant

Choose one - Remove X time counters from target permanent or suspended card; or put X time counters on target permanent with a time counter on it or suspended card.

Oddly, an unstable time stream makes wizards want to tinker with it even more.