At the beginning of your upkeep, sacrifice Koskun Falls unless you tap an untapped creature you control.

Creatures can't attack you unless their controller pays for each creature they control that's attacking you.

+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.'"

Flying

Whenever a permanent owned by another player is put into a graveyard from the battlefield, you draw a card and you lose 1 life.

Vehicles you control have crew 2.

At the beginning of combat on your turn, target artifact creature you control gains lifelink and vigilance until end of turn.

When you cast this spell, draw four cards.

Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents of their choice.)

When Kozilek, Butcher of Truth is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.

When you cast this spell, up to two target players each manifest two cards from their hands. For each card manifested this way, you draw a card. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Other colorless creatures you control get +3/+2.

: Add .

: Target creature can't block Kozilek's Pathfinder this turn. ( represents colorless mana.)

Devoid (This card has no color.)

Kozilek's Return deals 2 damage to each creature.

Whenever you cast an Eldrazi creature spell with mana value 7 or greater, you may exile Kozilek's Return from your graveyard. If you do, Kozilek's Return deals 5 damage to each creature.

Devoid (This card has no color.)

: Kozilek's Shrieker gets +1/+0 and gains menace until end of turn. (It can't be blocked except by two or more creatures. represents colorless mana.)

Devoid (This card has no color.)

Whenever you cast a creature spell with mana value 4, 5, or 6, create two 0/1 colorless Eldrazi Spawn creature tokens with "Sacrifice this creature: Add ."

Whenever you cast a creature spell with mana value 7 or greater, draw three cards.

Minotaur creatures you control have haste.

Whenever a Minotaur you control attacks, it gets +2/+0 until end of turn.

Creatures with power less than the number of Islands you control can't block Kraken of the Straits.

Krakilin enters with X +1/+1 counters on it.

: Regenerate Krakilin.

: Krallenhorde Killer gets +4/+4 until end of turn. Activate only once each turn.

At the beginning of each upkeep, if a player cast two or more spells last turn, transform Krallenhorde Killer.

: Kranioceros gets +0/+3 until end of turn.

, Sacrifice two artifacts: Destroy target artifact.

Sacrifice an artifact: Add .

Sacrifice an artifact: Krark-Clan Shaman deals 1 damage to each creature without flying.

If you would roll a die, instead roll two of those dice and ignore one of those results.

Enchant creature

Enchanted creature can't attack or block, and its activated abilities can't be activated.

, Return Krasis Incubation to its owner's hand: Put two +1/+1 counters on enchanted creature.

Reach

Undergrowth — When Kraul Harpooner enters, choose up to one target creature you don't control with flying. Kraul Harpooner gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard, then you may have Kraul Harpooner fight that creature.

Deathtouch

: Kraul Warrior gets +3/+3 until end of turn.

Flying, haste

Whenever an opponent casts their second spell each turn, draw a card.

Partner (You can have two commanders if both have partner.)

Partner with Regna, the Redeemer (When this creature enters, target player may put Regna into their hand from their library, then shuffle.)

, Sacrifice X creatures: Target player draws X cards and gains X life. Put X +1/+1 counters on Krav, the Unredeemed.

Haste

, Sacrifice an artifact: Put a +1/+1 counter on each Goblin you control.

Whenever an artifact is put into a graveyard from the battlefield, you may pay . If you do, create a 1/1 red Goblin creature token. It gains haste until end of turn.

Whenever Krenko, Tin Street Kingpin attacks, put a +1/+1 counter on it, then create a number of 1/1 red Goblin creature tokens equal to Krenko's power.

Create two 1/1 red Goblin creature tokens.

Whenever another creature dies, you may put X +1/+1 counters on Kresh the Bloodbraided, where X is that creature's power.

Trample

Whenever a creature you control with power 4 or greater enters, put a +1/+1 counter on Kronch Wrangler.

At the beginning of your upkeep, put a shield counter on target creature an opponent controls.

Whenever you put one or more counters on a creature you don't control, tap that creature and goad it. It gains trample until your next turn. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Reach (This creature can block creatures with flying.)

, Discard a card: Krosan Archer gets +0/+2 until end of turn.

Threshold — Krosan Beast gets +7/+7 as long as seven or more cards are in your graveyard.

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

Creature spells you cast with mana value 6 or greater cost less to cast.

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

Destroy target artifact or enchantment.

Target player shuffles up to two target cards from their graveyard into their library.

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

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

When you cycle Krosan Tusker, you may search your library for a basic land card, reveal that card, put it into your hand, then shuffle. (Do this before you draw.)

Provoke (Whenever this creature attacks, you may have target creature defending player controls untap and block it if able.)

Krosan Vorine can't be blocked by more than one creature.

Sacrifice Krosan Wayfarer: You may put a land card from your hand onto the battlefield.

: Target creature gets +1/+0 until end of turn.

: Target creature you control gains flying until end of turn. Sacrifice it at the beginning of the next end step.

At the beginning of the end step, if Krovikan Horror is in your graveyard with a creature card directly above it, you may return Krovikan Horror to your hand.

, Sacrifice a creature: Krovikan Horror deals 1 damage to any target.

Enchant non-Wall creature you control

When Krovikan Plague enters, 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.

At the beginning of each end step, if a creature dealt damage by Krovikan Vampire this turn died, put that card onto the battlefield under your control. Sacrifice it when you lose control of Krovikan Vampire.

Equipped creature gets +2/+0.

, , Sacrifice Krovod Haunch: You gain 3 life.

When Krovod Haunch is put into a graveyard from the battlefield, you may pay . If you do, create two 1/1 white Dog creature tokens.

Equip

When Kroxa enters, sacrifice it unless it escaped.

Whenever Kroxa enters or attacks, each opponent discards a card, then each opponent who didn't discard a nonland card this way loses 3 life.

Escape—, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

First strike

At the beginning of each upkeep, if no spells were cast last turn, transform Kruin Outlaw.

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