Whenever an opponent casts a noncreature spell, that player loses 2 life and you gain 2 life.

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

Lifelink

Whenever a creature an opponent controls dies, you gain 1 life and create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

Whenever you attack, target attacking creature can't be blocked this turn. It connives. Then choose another attacking creature with lesser power. That creature gains double strike until end of turn. (To have a creature connive, draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.)

Haste

Whenever Kardum, Patron of Flames attacks, put a flame counter on it, then seek a card with mana value equal to the number of flame counters on it and exile that card face down.

When Kardum dies, put all cards you own exiled with it into your hand. At the beginning of the end step of your next turn, discard those cards.

First strike, menace

Whenever Kari Zev, Skyship Raider attacks, create Ragavan, a legendary 2/1 red Monkey creature token. Ragavan enters the battlefield tapped and attacking. Exile that token at end of combat.

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

Other Rats you control have toxic 1.

When Karumonix enters the battlefield, look at the top five cards of your library. You may reveal any number of Rat cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in a random order.

: Target creature can't be blocked this turn. If that creature is a Snake, it gets +2/+2 until end of turn.

Whenever you put one or more time counters on a permanent you control, create a 1/1 white Soldier creature token.

Whenever Kate Stewart attacks, you may pay . If you do, attacking creatures get +X/+X until end of turn, where X is the number of time counters among permanents you control.

Flying, lifelink, protection from Vampires

Katilda, Dawnhart Martyr's power and toughness are each equal to the number of permanents you control that are Spirits and/or enchantments.

Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Flying

: Until end of turn, target noncreature artifact you control becomes an artifact creature and gains flying. If it's not a Vehicle, it has base power and toughness 1/1 until end of turn.

At the beginning of your upkeep, put a +1/+1 counter on each of up to three target noncreature artifacts.

Flying, haste

: The next instant or sorcery spell you cast this turn costs less to cast, where X is the number of Wizards you control as this ability resolves.

Flying, indestructible

Kefnet the Mindful can't attack or block unless you have seven or more cards in hand.

: Draw a card, then you may return a land you control to its owner's hand.

Whenever a commander you control attacks, put a +1/+1 counter on it.

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

Flying, vigilance

Whenever Kellan, Inquisitive Prodigy attacks, destroy up to one target artifact. If you controlled that permanent, draw a card.

Flying, lifelink

Whenever you cast a spell from anywhere other than your hand, you may cast a permanent spell with equal or lesser mana value from your hand without paying its mana cost. If you don't, you may put a land card from your hand onto the battlefield.

Menace

Whenever you sacrifice a creature, you may pay . If you do, draw a card. ( can be paid with either or .)

, Sacrifice a creature: Kels, Fight Fixer gains indestructible until end of turn.

Whenever Kemba, Kha Enduring or another Cat enters the battlefield under your control, attach up to one target Equipment you control to that creature.

Equipped creatures you control get +1/+1.

: Create a 2/2 white Cat creature token.

If you would scry a number of cards, scry that many cards plus one instead.

: Look at the top card of your library. If it's a Kraken, Leviathan, Octopus, or Serpent creature card, you may put it onto the battlefield. If you don't put the card onto the battlefield, you may put it on the bottom of your library.

Double strike; bushido 2 (Whenever this creature blocks or becomes blocked, it gets +2/+2 until end of turn.)

Flying

Once during each of your turns, you may cast an instant or sorcery spell from your graveyard. If a spell cast this way would be put into your graveyard, exile it instead.

At the beginning of your end step, you may sacrifice another creature. If you do, reveal cards from the top of your library until you reveal a nonlegendary creature card with lesser mana value, put it onto the battlefield, then put the rest on the bottom of your library in a random order.

Berzerker — Khârn the Betrayer attacks or blocks each combat if able.

Sigil of Corruption — When you lose control of Khârn the Betrayer, draw two cards.

The Betrayer — If damage would be dealt to Khârn the Betrayer, prevent that damage and an opponent of your choice gains control of it.

: Exile the top card of your library. If it's a land card, put it into your hand. Otherwise, put a study counter on it.

: Create a 0/0 green and blue Fractal creature token. Put a +1/+1 counter on it for each different mana value among nonland cards you own in exile with study counters on them.

, : Target creature deals damage to itself equal to its power.

Other creatures you control get +1/+1.

: Put a +1/+1 counter on King Darien and create a 1/1 white Soldier creature token.

Sacrifice King Darien: Creature tokens you control gain hexproof and indestructible until end of turn.

Flying

Whenever King of the Oathbreakers or another Spirit you control becomes the target of a spell, it phases out. (Treat it and anything attached to it as though they don't exist until your next turn.)

Whenever King of the Oathbreakers or another Spirit you control phases in, create a tapped 1/1 white Spirit creature token with flying.

Flying

Creatures you control have "Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability."

At the beginning of the end step, if Kitsune Mystic is enchanted by two or more Auras, flip it.

Indestructible

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

At the beginning of your precombat main phase, exile target card from a graveyard. If it was a land card, add or . Otherwise, you gain 2 life and Klothys deals 2 damage to each opponent.

Reach

Modified creatures you control have trample. (Equipment, Auras you control, and counters are modifications.)

Whenever a modified creature you control deals combat damage to a player, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

As long as you control three or more legendary creatures, Kolvori gets +4/+2 and has vigilance.

, : Look at the top six cards of your library. You may reveal a legendary creature card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Spells your opponents cast that target a Merfolk you control cost more to cast.

Abilities your opponents activate that target a Merfolk you control cost more to activate.

You may look at the top card of your library any time.

You may cast Dragon spells from the top of your library.

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.

Flying

Whenever you cast your second spell each turn, put a +1/+1 counter on Kraum, Violent Cacophony and draw a card.

: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.

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.)

When Kroxa enters the battlefield, sacrifice it unless it escaped.

Whenever Kroxa enters the battlefield 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.)

Other creatures have base power and toughness 2/2 and are Bears in addition to their other types.

Vigilance, menace, lifelink

Creature cards in graveyards can't enter the battlefield.

Players can't cast spells from graveyards.

At the beginning of each player's upkeep, that player sacrifices a creature.

Whenever you activate an ability of an artifact, if it isn't a mana ability, you may pay . If you do, copy that ability. You may choose new targets for the copy.

: Each player may draw a card, then each player who drew a card this way gains 1 life.

: 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 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.

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

If you would put one or more counters on a creature or planeswalker you control or on yourself, put that many plus one of each of those kinds of counters on that permanent or player instead.

Choose a Background (You can have a Background as a second commander.)

When Lagrella, the Magpie enters the battlefield, exile any number of other target creatures controlled by different players until Lagrella leaves the battlefield. When an exiled card enters the battlefield under your control this way, put two +1/+1 counters on it.

Menace

Whenever Lathril, Blade of the Elves deals combat damage to a player, create that many 1/1 green Elf Warrior creature tokens.

, Tap ten untapped Elves you control: Each opponent loses 10 life and you gain 10 life.