Reprisal

Instant

Destroy target creature with power 4 or greater. It can't be regenerated.

"The meek shall fight as one, and they shall overcome even the greatest of foes."
-Halvor Arenson, Kjeldoran priest

Rescue from the Underworld

Instant

As an additional cost to cast Rescue from the Underworld, sacrifice a creature.

Choose target creature card in your graveyard. Return that card and the sacrificed card to the battlefield under your control at the beginning of your next upkeep. Exile Rescue from the Underworld.

Restore the Peace

Instant

Return each creature that dealt damage this turn to its owner's hand.

"You can always count on the Azorius to ruin a party."
-Massacre Girl

Retraction Helix

Instant

Until end of turn, target creature gains ": Return target nonland permanent to its owner's hand."

Where the geometries of the world collapse, a master of the Æther can harvest power beyond comprehending.

Riddle of Lightning

Instant

Choose target creature or player. Scry 3, then reveal the top card of your library. Riddle of Lightning deals damage equal to that card's converted mana cost to that creature or player. (To scry 3, look at the top three cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Ride Down

Instant

Destroy target blocking creature. Creatures that were blocked by that creature this combat gain trample until end of turn.

"I will wash you from my hooves!"
-Mardu taunt

Riot Control

Instant

You gain 1 life for each creature your opponents control. Prevent all damage that would be dealt to you this turn.

"Ravnicans need order. If they don't have it, we shall bring it to them."
-Isperia

Rise to the Challenge

Instant

Target creature gets +2/+0 and gains first strike until end of turn.

Plidius wagered that Arissa couldn't kill a chimera with her javelins alone. She proved him wrong in a way everyone could see for days to come.

Ritual of the Returned

Instant

Exile target creature card from your graveyard. Put a black Zombie creature token onto the battlefield. Its power is equal to that card's power and its toughness is equal to that card's toughness.

A mask forged to avenge a death forgotten.

Roil's Retribution

Instant

Roil's Retribution deals 5 damage divided as you choose among any number of target attacking or blocking creatures.

"We can use their hunger to lead them into danger. If we're already prey, we may as well be bait!"-Yon Basrel, Oran-Rief survivalist

Roilmage's Trick

Instant

Converge - Creatures your opponents control get -X/-0 until end of turn, where X is the number of colors of mana spent to cast Roilmage's Trick.

Draw a card.

Weather on Zendikar is unpredictable-unless you're the one telling it what to do.

Rootborn Defenses

Instant

Populate. Creatures you control are indestructible this turn. (To populate, put a token onto the battlefield that's a copy of a creature token you control. Damage and effects that say "destroy" don't destroy indestructible creatures.)

Rouse the Mob

Instant

Strive - Rouse the Mob costs more to cast for each target beyond the first.

Any number of target creatures each get +2/+0 and gain trample until end of turn.

Sanctified Charge

Instant

Creatures you control get +2/+1 until end of turn. White creatures you control also gain first strike until end of turn. (They deal combat damage before creatures without first strike.)

You need only raise your spear to receive this blessing.

Savage Summoning

Instant

Savage Summoning can't be countered.

The next creature card you cast this turn can be cast as though it had flash. That spell can't be countered. That creature enters the battlefield with an additional +1/+1 counter on it.

Savage Surge

Instant

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

Gruul warriors never need to be stirred to battle. They need only to be shown where the battle is.

Scatter Arc

Instant

Counter target noncreature spell.

Draw a card.

"Should your chosen emissary be able to fluctuate triharmonic pentodes, however unlikely, I shall shunt excess negavolt radicals."

Scatter to the Winds

Instant

Counter target spell.

Awaken 3- (If you cast this spell for , also put three +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.)

Scour from Existence

Instant

Exile target permanent.

"Our people and our very lands disappear as if they never were. We no longer fight for glory, or honor. We battle now for the right to exist."-General Tazri, allied commander

Searing Blood

Instant

Searing Blood deals 2 damage to target creature. When that creature dies this turn, Searing Blood deals 3 damage to the creature's controller.

Purphoros's blessing: sometimes a boon, sometimes a bane. Always ablaze.

Searing Light

Instant

Destroy target attacking or blocking creature with power 2 or less.

"Light can lay bare our fears. It can also make them go away."
-Nazra of the Stone Havens

Selesnya Charm

Instant

Choose one - Target creature gets +2/+2 and gains trample until end of turn; or exile target creature with power 5 or greater; or put a 2/2 white Knight creature token with vigilance onto the battlefield.

Serve (Protect/Serve)

Instant

Target creature gets -6/-0 until end of turn.

Fuse (You may cast one or both halves of this card from your hand.)

Setessan Tactics

Instant

Strive - Setessan Tactics costs more to cast for each target beyond the first.

Until end of turn, any number of target creatures each get +1/+1 and gain ": This creature fights another target creature."

Shatter

Instant

Destroy target artifact.

"I am an artist, a builder, a creator . . . I create the biggest explosions around."
-Krol, goblin furnace-priest

Shattering Blow

Instant

Exile target artifact.

"Aurelia seems too eager to solve her problems by delivering them to oblivion."
-Prime Speaker Zegana

Shielded Passage

Instant

Prevent all damage that would be dealt to target creature this turn.

Izzet delved into the depths of Ravnica's past, and Selesnya followed without fear.

Shock

Instant

Shock deals 2 damage to target creature or player.

"The beauty of it is they never see it coming. Ever."
-Razzix, sparkmage

Show of Valor

Instant

Target creature gets +2/+4 until end of turn.

"Duty, honor, and valor are either in your heart or they are not. You will never know for certain until you are tested."
-Ajani Goldmane

Showstopper

Instant

Until end of turn, creatures you control gain "When this creature dies, it deals 2 damage to target creature an opponent controls."

The audience quickly realized a few things: it wasn't a magic trick, there wasn't candy in there, and they'd need new clothes.

Shrapnel Blast

Instant

As an additional cost to cast Shrapnel Blast, sacrifice an artifact.

Shrapnel Blast deals 5 damage to target creature or player.

Shredding Winds

Instant

Shredding Winds deals 7 damage to target creature with flying.

"Enemies of the wood! Your presence here is a slap in Nylea's face. Do not be surprised if she slaps back."
-Telphe, druid of Nylea

Signal the Clans

Instant

Search your library for three creature cards and reveal them. If you reveal three cards with different names, choose one of them at random and put that card into your hand. Shuffle the rest into your library.

Gruul clanfolk obey few rules, but all feel bound to answer the call of the horn.

Silence

Instant

Your opponents can't cast spells this turn. (Spells cast before this resolves are unaffected.)

"Take a quiet moment to reflect on your sins."
-Cleph, Order of Redeemed Souls

Silence the Believers

Instant

Strive - Silence the Believers costs more to cast for each target beyond the first.

Exile any number of target creatures and all Auras attached to them.

Simic Charm

Instant

Choose one - Target creature gets +3/+3 until end of turn; or permanents you control gain hexproof until end of turn; or return target creature to its owner's hand.

"We measure our progress in heartbeats."
-Prime Speaker Zegana

Skullcrack

Instant

Players can't gain life this turn. Damage can't be prevented this turn. Skullcrack deals 3 damage to target player.

The lawmage's argument was clever and well reasoned, but Blunk's response proved irrefutable.

Smelt

Instant

Destroy target artifact.

"Looks like that wasn't darksteel after all."
-Koth of the Hammer

Smite

Instant

Destroy target blocked creature.

"The mighty rely solely on their strength. They are shocked when we do the same."
-Tars Olan, kor world-gift

Smite the Monstrous

Instant

Destroy target creature with power 4 or greater.

Though the old holy wards and roadside shrines have begun to fail, faith in Avacyn still holds true power.