Jagged-Scar Archers's power and toughness are each equal to the number of Elves you control.

: Jagged-Scar Archers deals damage equal to its power to target creature with flying.

Jaws of Stone deals X damage divided as you choose among any number of targets, where X is the number of Mountains you control as you cast this spell.

+1: Create a 1/1 red Monk creature token with prowess.

−1: Exile the top two cards of your library. Choose one of them. You may play that card this turn.

−2: Choose target creature an opponent controls. Whenever you attack this turn, Jaya, Fiery Negotiator deals damage equal to the number of attacking creatures to that creature.

−8: You get an emblem with "Whenever you cast a red instant or sorcery spell, copy it twice. You may choose new targets for the copies."

Jaya's Firenado deals 5 damage to target creature or planeswalker. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)

Jaya's Immolating Inferno deals X damage to each of up to three targets.

Jeska, Thrice Reborn enters the battlefield with a loyalty counter on her for each time you've cast a commander from the command zone this game.

0: Choose target creature. Until your next turn, if that creature would deal combat damage to one of your opponents, it deals triple that damage to that player instead.

−X: Jeska, Thrice Reborn deals X damage to each of up to three targets.

Jeska, Thrice Reborn can be your commander.

Partner

Choose one —

• Put target creature on top of its owner's library.

• Jeskai Charm deals 4 damage to target opponent or planeswalker.

• Creatures you control get +1/+1 and gain lifelink until end of turn.

Kicker (You may pay an additional as you cast this spell.)

Return target creature to its owner's hand. If this spell was kicked, it deals 2 damage to another target creature.

At the beginning of your upkeep, Jinxed Idol deals 2 damage to you.

Sacrifice a creature: Target opponent gains control of Jinxed Idol.

, : Jiwari, the Earth Aflame deals X damage to target creature without flying.

Channel — , Discard Jiwari: Jiwari deals X damage to each creature without flying.

At the beginning of combat on your turn, up to one target land you control becomes an X/X green and blue Bird creature with flying and haste until end of turn, where X is the number of cards in your hand. It's still a land.

Whenever a land creature you control deals combat damage to a player, draw a card.

Choose target creature you control and target creature you don't control. The creature you control gets +2/+1 until end of turn if it's a Knight. Then those creatures fight each other. (Each deals damage equal to its power to the other.)

Choose target attacking or blocking creature. Scry 3, then reveal the top card of your library. Judge Unworthy deals damage equal to that card's mana value to that creature.

Choose one —

• Exile target player's graveyard.

• Jund Charm deals 2 damage to each creature.

• Put two +1/+1 counters on target creature.

Whenever you sacrifice a permanent, put a +1/+1 counter on Juri, Master of the Revue.

When Juri dies, it deals damage equal to its power to any target.

Target creature deals damage to itself equal to its power.

Choose any number of target players or planeswalkers. For each of them, reveal cards from the top of your library until you reveal a nonland card, Kaboom deals damage equal to that card's mana value to that player or planeswalker, then you put the revealed cards on the bottom of your library in any order.

Destroy target creature with mana value X. If that creature dies this way, Kaervek's Purge deals damage equal to the creature's power to the creature's controller.

Flying

Remove a ki counter from Kaiso, Memory of Loyalty: Prevent all damage that would be dealt to target creature this turn.

Converge — Kaleidoscorch deals X damage to any target, where X is the number of colors of mana spent to cast this spell.

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

Kamahl's Sledge deals 4 damage to target creature.

Threshold — If seven or more cards are in your graveyard, instead Kamahl's Sledge deals 4 damage to that creature and 4 damage to that creature's controller.

Flying

Whenever Kami of the Honored Dead is dealt damage, you gain that much life.

Soulshift 6 (When this creature dies, you may return target Spirit card with mana value 6 or less from your graveyard to your hand.)

Ninjutsu

Kappa Tech-Wrecker enters the battlefield with a deathtouch counter on it.

Whenever Kappa Tech-Wrecker deals combat damage to a player, you may remove a deathtouch counter from it. When you do, exile target artifact or enchantment that player controls.

When Karfell Kennel-Master enters the battlefield, up to two target creatures each get +1/+0 and gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Karona's Zealot is turned face up, all damage that would be dealt to it this turn is dealt to target creature instead.

Cumulative upkeep—Flip a coin. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Whenever you win a coin flip, Karplusan Minotaur deals 1 damage to any target.

Whenever you lose a coin flip, Karplusan Minotaur deals 1 damage to any target of an opponent's choice.

: Karplusan Yeti deals damage equal to its power to target creature. That creature deals damage equal to its power to Karplusan Yeti.

Whenever a creature you control that was turned face up this turn deals combat damage to a player, draw a card.

: Turn target face-down attacking creature you control face up.

+1: Exile up to two target cards from a single graveyard. You gain 2 life if at least one creature card was exiled this way.

−1: Exile target nonland permanent with mana value 1 or less.

−5: Kaya, Orzhov Usurper deals damage to target player equal to the number of cards that player owns in exile and you gain that much life.

As an additional cost to cast this spell, sacrifice a creature.

Kazuul's Fury deals damage equal to the sacrificed creature's power to any target.

, : Choose target opponent who has more life than you do as you activate this ability. Keeper of the Flame deals 2 damage to that player.

Haste

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

When Keldon Champion enters the battlefield, it deals 3 damage to target player or planeswalker.

Keldon Megaliths enters the battlefield tapped.

: Add .

Hellbent — , : Keldon Megaliths deals 1 damage to any target. Activate only if you have no cards in hand.

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.)

Kellan's Lightblades deals 3 damage to target attacking or blocking creature. If this spell was bargained, destroy that creature instead.

Indestructible

As long as your devotion to blue and red is less than seven, Keranos isn't a creature.

Reveal the first card you draw on each of your turns. Whenever you reveal a land card this way, draw a card. Whenever you reveal a nonland card this way, Keranos deals 3 damage to any target.

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Target creature deals damage to itself equal to its power.

Killer deals 3 damage to target creature and each other creature that shares a creature type with it.

Amplify 3 <I>(As this creature enters the battlefield, put three +1/+1 counters on it for each Dragon card you reveal in your hand.)</I>

Flying

: Kilnmouth Dragon deals damage equal to the number of +1/+1 counters on it to any target.

+1: Until your next turn, prevent all damage that would be dealt to and dealt by target permanent an opponent controls.

−1: Draw a card. You may play an additional land this turn.

−5: You get an emblem with "At the beginning of your end step, create a 9/9 blue Kraken creature token."

Kird Chieftain gets +1/+1 as long as you control a Forest.

: Target creature gets +2/+2 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

: Prevent the next 1 damage that would be dealt to any target this turn.

: Prevent the next 1 damage that would be dealt to any target this turn.

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

Choose one. If you control a commander as you cast this spell, you may choose both instead.

• Breathe Flame — Klauth's Will deals X damage to each creature without flying.

• Smash Relics — Destroy up to X target artifacts and/or enchantments.

First strike, protection from black borders (Nothing with a black border can block, target, deal damage to, or attach to this creature.)

First strike, protection from loose lips (Nothing with an open mouth in its artwork can block, target, deal damage to, or attach to this creature.)

First strike, protection from two-word names (Nothing with exactly two words in its name can block, target, deal damage to, or attach to this creature. Hyphenated words are one word.)

Trample

Frenzied Rampage — At the beginning of combat on your turn, choose an opponent at random. Knight Rampager attacks that player this combat if able.

When Knight Rampager dies, it deals 4 damage to target opponent chosen at random.

Flying

When Knollspine Dragon enters the battlefield, you may discard your hand and draw cards equal to the damage dealt to target opponent this turn.

Whenever you scry, you may pay . If you do, Knowledge and Power deals 2 damage to any target.