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.

: Kumano, Master Yamabushi deals 1 damage to any target.

If a creature dealt damage by Kumano this turn would die, exile it instead.

: Add for each card you've drawn this turn.

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

At the beginning of your end step, draw a card. Each player may put a land card from their hand onto the battlefield, then each opponent who didn't draws a card.

At the beginning of your upkeep, you may exile the top card of your library face down.

, Discard your hand, Sacrifice Kyren Archive: Put all cards exiled with Kyren Archive into their owner's hand.

If an opponent controls a Plains and you control a Mountain, you may cast this spell without paying its mana cost.

Haste

At the beginning of your upkeep, you may have Kyren Sniper deal 1 damage to target player or planeswalker.

Flying

: Kyscu Drake gets +0/+1 until end of turn. Activate this ability only once each turn.

Sacrifice Kyscu Drake and a creature named Spitting Drake: Search your library for a card named Viashivan Dragon and put that card onto the battlefield. Then shuffle your library.

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)

: Tap target creature.

When Laboratory Brute enters the battlefield, put the top four cards of your library into your graveyard.

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

Whenever Labyrinth Minotaur blocks a creature, that creature doesn't untap during its controller's next untap step.

: Lady Caleria deals 3 damage to target attacking or blocking creature.

Horsemanship (This creature can't be blocked except by creatures with horsemanship.)

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Whenever a creature you control deals combat damage to a player, that player discards a card.

Shuffle a card from your hand into your library. If you do, draw two cards at the beginning of the next turn's upkeep.

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

Destroy target creature. Its controller loses 2 life.

Counter target spell. Look at its controller's hand.

Enchant permanent

You control enchanted permanent.

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

Destroy target land.

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

Support 2. (Put a +1/+1 counter on each of up to two target creatures.)

: Add .

Flying

: Leering Gargoyle gets -2/+2 and loses flying until end of turn.

: Exile target permanent.

If Legacy Weapon would be put into a graveyard from anywhere, reveal Legacy Weapon and shuffle it into its owner's library instead.

Haste

Battalion — Whenever Legion Loyalist and at least two other creatures attack, creatures you control gain first strike and trample until end of turn and can't be blocked by creature tokens this turn.

Flying

If three or more creatures are attacking, you may pay rather than pay this spell's mana cost.

Attacking creatures get -3/-0 until end of turn.

At the beginning of each player's upkeep, that player may put a +1/+1 counter on target creature of their choice.

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

Whenever you tap a creature for mana, add an additional .

: Put a +1/+1 counter on each creature you control.

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

Whenever you and/or at least one permanent you control becomes the target of a spell or ability an opponent controls, Leyline of Combustion deals 2 damage to that player.

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

Whenever you cast a spell, you may pay . If you do, Leyline of Lightning deals 1 damage to target player or planeswalker.

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

You have hexproof. (You can't be the target of spells or abilities your opponents control.)