Flying

When Kemba's Skyguard enters the battlefield, you gain 2 life.

Keymaster Rogue can't be blocked.

When Keymaster Rogue enters the battlefield, return a creature you control to its owner's hand.

For each player, choose friend or foe. Each friend discards all cards from their hand, then draws that many cards plus one. Khorvath's Fury deals damage to each foe equal to the number of cards in their hand.

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

Delirium — : Transform Kindly Stranger. Activate this ability only if there are four or more card types among cards in your graveyard.

Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with Kithkin Zephyrnaut, you may reveal it. If you do, Kithkin Zephyrnaut gets +2/+2 and gains flying and vigilance until end of turn.

Kiyomaro, First to Stand's power and toughness are each equal to the number of cards in your hand.

As long as you have four or more cards in hand, Kiyomaro has vigilance.

Whenever Kiyomaro deals damage, if you have seven or more cards in hand, you gain 7 life.

: All combat damage that would be dealt to you by unblocked creatures this turn is dealt to Kjeldoran Royal Guard instead.

Flying; first strike; banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Protection from black (This creature can't be blocked, targeted, dealt damage, or enchanted by anything black.)

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

First strike

, Do the Hokey Pokey: Prevent all damage a source of your choice would deal to Knight of the Hokey Pokey this turn. (To do the Hokey Pokey, put your right foot in. Put your right foot out. Put your right foot in. Shake it all about. Repeat this process for your left foot, right arm, left arm, and whole self.)

Knight of the Reliquary gets +1/+1 for each land card in your graveyard.

, Sacrifice a Forest or Plains: Search your library for a land card, put it onto the battlefield, then shuffle your library.

Enchant creature

When Knightly Valor enters the battlefield, create a 2/2 white Knight creature token with vigilance. (Attacking doesn't cause it to tap.)

Enchanted creature gets +2/+2 and has vigilance.

Flying

Whenever a Dragon you control attacks, creatures you control get +1/+0 until end of turn.

Dash (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

: Kor Sky Climber gains flying until end of turn.

Whenever a player casts a blue spell, you may gain 1 life.

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

, : Prevent all damage that would be dealt this turn by target creature you control. That creature gets +0/+X until end of turn, where X is its converted mana cost.

Tap another untapped Merfolk you control: Kumena, Tyrant of Orazca can't be blocked this turn.

Tap three untapped Merfolk you control: Draw a card.

Tap five untapped Merfolk you control: Put a +1/+1 counter on each Merfolk you control.

Flying

Whenever you cast a noncreature spell, create a 1/1 white Spirit creature token with flying.

Sacrifice a Spirit: Add .

Whenever you cast a Spirit or Arcane spell, target opponent exiles a card from their hand.

Flying

Kyren Glider can't block.

Tap an untapped creature you control: Kyren Negotiations deals 1 damage to target player or planeswalker.

, : Put a charge counter on Kyren Toy.

, Remove X charge counters from Kyren Toy: Add an amount of equal to X plus one.

At end of combat, if Kytheon, Hero of Akros and at least two other creatures attacked this combat, exile Kytheon, then return him to the battlefield transformed under his owner's control.

: Kytheon gains indestructible until end of turn.

Creatures you control get +2/+1 until end of turn.

Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, those creatures also gain vigilance until end of turn. (Attacking doesn't cause them to tap.)

If you would draw a card while your library has no cards in it, you win the game instead.

When Labyrinth Guardian becomes the target of a spell, sacrifice it.

Embalm (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Illusion Warrior with no mana cost. Embalm only as a sorcery.)

Whenever you crank Lackey Recycler, put target creature card from your graveyard on top of your library.

, : Prevent all combat damage that would be dealt by target creature this turn.

: Return Lady Sun and another target creature to their owners' hands. Activate this ability only during your turn, before attackers are declared.

: Add .

: Add or . Lantern-Lit Graveyard doesn't untap during your next untap step.

Target player draws cards equal to the number of cards in their hand, then discards that many cards.

Flying

Prowl (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Faerie or Rogue.)

When Latchkey Faerie enters the battlefield, if its prowl cost was paid, draw a card.

Gotcha — If an opponent laughs, you may say "Gotcha" When you do, return Laughing Hyena from your graveyard to your hand.

Sliver creatures you control have "When this creature enters the battlefield, it deals 1 damage to target player or planeswalker and you gain 1 life."

Target opponent reveals their hand. You choose a nonlegendary, nonland card from it. That player discards that card.

Search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.

Tap up to two target creatures.

Trample

Sacrifice Lead-Belly Chimera: Put a +2/+2 counter on target Chimera creature. It gains trample. (This effect lasts indefinitely.)

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Reach

Enchanted creature gets +2/+2 and has reach.

Whenever Leery Fogbeast becomes blocked, prevent all combat damage that would be dealt this turn.

At the beginning of your upkeep, you may put a treasure counter on Legacy's Allure.

Sacrifice Legacy's Allure: Gain control of target creature with power less than or equal to the number of treasure counters on Legacy's Allure. (This effect lasts indefinitely.)

You may look at the top card of your library and at face-down creatures you don't control any time.

Each opponent can't draw more than one card each turn.

Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card.

: Untap target land.

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

: Untap two target lands.

If Leyline of Anticipation is in your opening hand, you may begin the game with it on the battlefield.

You may cast spells as though they had flash.

If Leyline of Lifeforce is in your opening hand, you may begin the game with it on the battlefield.

Creature spells can't be countered.

If Leyline of Punishment is in your opening hand, you may begin the game with it on the battlefield.

Players can't gain life.

Damage can't be prevented.