Igneous Inspiration deals 3 damage to any target.

Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

Imminent Doom enters the battlefield with a doom counter on it.

Whenever you cast a spell with mana value equal to the number of doom counters on Imminent Doom, Imminent Doom deals that much damage to any target. Then put a doom counter on Imminent Doom.

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

Improvised Club deals 4 damage to any target.

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

When Imskir Iron-Eater enters the battlefield, you draw X cards and you lose X life, where X is half the number of artifacts you control, rounded down.

, Sacrifice an artifact: Imskir deals damage equal to the sacrificed artifact's mana value to any target.

Choose two —

• Incendiary Command deals 4 damage to target player or planeswalker.

• Incendiary Command deals 2 damage to each creature.

• Destroy target nonbasic land.

• Each player discards all the cards in their hand, then draws that many cards.

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

As an additional cost to cast this spell, return X Swamps you control to their owner's hand.

Infernal Harvest deals X damage divided as you choose among any number of target creatures.

This spell can't be countered.

Flying, haste

: Inferno of the Star Mounts gets +1/+0 until end of turn. When its power becomes 20 this way, it deals 20 damage to any target.

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

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)

When Invasion of Tarkir enters the battlefield, reveal any number of Dragon cards from your hand. When you do, Invasion of Tarkir deals X plus 2 damage to any other target, where X is the number of cards revealed this way. (X can be 0.)

Choose one —

• Draw X cards.

• Invoke the Firemind deals X damage to any target.

Ire of Kaminari deals damage to any target equal to the number of Arcane cards in your graveyard.

Choose one —

• All creatures get -2/-0 until end of turn.

• Tap target creature.

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

When Jared Carthalion, True Heir enters the battlefield, target opponent becomes the monarch. You can't become the monarch this turn.

If damage would be dealt to Jared Carthalion while you're the monarch, prevent that damage and put that many +1/+1 counters on it.

, , Discard a card: Destroy target blue permanent.

, , Discard a card: Jaya Ballard, Task Mage deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

, , Discard a card: Jaya Ballard deals 6 damage to each creature and each player.

First strike, haste

: Jeska, Warrior Adept deals 1 damage to any target.

Whenever you attack with one or more creatures with power 4 or greater, create a Treasure token.

, Sacrifice a Treasure: Jolene, Plundering Pugilist deals 1 damage to any target.

When you cycle Jund Sojourners or it dies, you may have it deal 1 damage to any target.

Cycling (, Discard this card: Draw a card.)

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.

As long as Kaervek's Torch is on the stack, spells that target it cost more to cast.

Kaervek's Torch deals X damage to any target.

Haste (This creature can attack and as soon as it comes under your control.)

: Kamahl, Pit Fighter deals 3 damage to any target.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — You may sacrifice a creature. When you do, Kardur's Vicious Return deals 3 damage to any target.

II — Each player discards a card.

III — Return target creature card from your graveyard to the battlefield. Put a +1/+1 counter on it. It gains haste until your next turn.

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.

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.

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.

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.

Kindle deals X damage to any target, where X is 2 plus the number of cards named Kindle in all graveyards.

: 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.

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

+1: Untap target Mountain. It becomes a 4/4 red Elemental creature until end of turn. It's still a land.

−2: Add for each Mountain you control.

−5: You get an emblem with "Mountains you control have ‘: This land deals 1 damage to any target.'"

, , Discard a card: Kris Mage deals 1 damage to any target.

Enchant non-Wall creature you control

When Krovikan Plague enters the battlefield, draw a card at the beginning of the next turn's upkeep.

Tap enchanted creature: Krovikan Plague deals 1 damage to any target. Put a -0/-1 counter on enchanted creature. Activate only if enchanted creature is untapped.

Heroic — Whenever you cast a spell that targets Labyrinth Champion, Labyrinth Champion deals 2 damage to any target.

Discard a card: If the discarded card was a land card, Land's Edge deals 2 damage to target player or planeswalker. Any player may activate this ability.

Target opponent loses 2 life for each Swamp you control. Last Stand deals damage to target creature equal to the number of Mountains you control. Create a 1/1 green Saproling creature token for each Forest you control. You gain 2 life for each Plains you control. Draw a card for each Island you control, then discard that many cards.

, , Discard two cards: Latulla, Keldon Overseer deals X damage to any target.

Lava Dart deals 1 damage to any target.

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

When Legion Extruder enters the battlefield, it deals 2 damage to any target.

, , Sacrifice another artifact: Create a 3/3 colorless Golem artifact creature token.

Flying

You don't lose unspent red mana as steps and phases end.

When Leyline Tyrant dies, you may pay any amount of . When you do, it deals that much damage to any target.

Light Up the Night deals X damage to any target. It deals X plus 1 damage instead if that target is a creature or planeswalker.

Flashback—, Remove X loyalty counters from among planeswalkers you control. If you cast this spell this way, X can't be 0. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Lightning Bolt deals 3 damage to any target.

When CARDNAME enters the battlefield, it deals 3 damage to any target.

Enchant creature

When Lightning Diadem enters the battlefield, it deals 2 damage to any target.

Enchanted creature gets +2/+2.

Lightning Javelin deals 3 damage to any target. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Whenever a player cycles a card, you may pay . If you do, Lightning Rift deals 2 damage to any target.

Lightning Storm deals X damage to any target, where X is 3 plus the number of charge counters on Lightning Storm.

Discard a land card: Put two charge counters on Lightning Storm. You may choose a new target for it. Any player may activate this ability but only if Lightning Storm is on the stack.

Lightning Surge deals 4 damage to any target.

Threshold — If seven or more cards are in your graveyard, instead Lightning Surge deals 6 damage to that permanent or player and the damage can't be prevented.

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

, , Sacrifice Lightning-Core Excavator: It deals 3 damage to any target.

: Living Inferno deals damage equal to its power divided as you choose among any number of target creatures. Each of those creatures deals damage equal to its power to Living Inferno.