Create an X/X black and green Spirit Warrior creature token, where X is the greatest toughness among creatures you control.

Destroy all creatures. They can't be regenerated.

Threshold — If seven or more cards are in your graveyard, instead destroy all creatures, then create two 1/1 white Spirit creature tokens with flying. Creatures destroyed this way can't be regenerated.

As long as you control a Giant, Kithkin Greatheart gets +1/+1 and has first strike.

Just a second (As long as this spell is on the stack, players can't move permanents.)

One at a time, throw ten cards you own from outside the game onto the playing area from a distance of at least three feet (about one meter). For each of those cards, Knife and Death deals 1 damage to each creature or planeswalker you don't control that card is touching. You gain life equal to the damage dealt this way.

, Sacrifice another nontoken creature: Create a 1/1 white and black Spirit creature token with flying.

Afterlife 3 (When this creature dies, create three 1/1 white and black Spirit creature tokens with flying.)

, Discard a card with mana value X: Knollspine Invocation deals X damage to any target.

Menace

Equipped creature gets +2/+2 and has menace.

Whenever Komainu Battle Armor or equipped creature deals combat damage to a player, goad each creature that player controls.

Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Kor Castigator can't be blocked by Eldrazi Scions.

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

Devoid (This card has no color.)

Pay 1 life: Add . Activate only once each turn. ( represents colorless mana.)

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.

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.)

Whenever Krydle of Baldur's Gate deals combat damage to a player, that player loses 1 life and mills a card, then you gain 1 life and scry 1.

Whenever you attack, you may pay . If you do, target creature can't be blocked this turn.

Flying

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Creatures your opponents control with counters on them can't attack or block.

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

Haste

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)

Create a 1/1 black Rat creature token.

At the beginning of each end step, draw a card if you've cast a spell from a graveyard or activated an ability of a card in a graveyard this turn.

Lacerate Flesh deals 4 damage to target creature. Create a number of Blood tokens equal to the amount of excess damage dealt to that creature this way. (They're artifacts with ", , Discard a card, Sacrifice this artifact: Draw a card.")

At the beginning of combat on your turn, create a 2/1 red Elemental creature token with trample and haste. Sacrifice it at the beginning of the next end step.

: Search your library for a card, put it into your hand, then shuffle. Activate only if five or more creatures died this turn.

, Sacrifice a creature: Each opponent loses 1 life and you gain 1 life.

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

Exile target creature with power 2 or less. Its controller gains 4 life.

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.

Lifelink

At the beginning of each end step, if you gained life this turn, distribute up to that many +1/+1 counters among any number of other target creatures.

Haste

When Lathnu Hellion enters the battlefield, you get (two energy counters).

At the beginning of your end step, sacrifice Lathnu Hellion unless you pay .

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.

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

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

: Add .

At the beginning of each player's upkeep, that player may put a doom counter on Lavabrink Floodgates or remove a doom counter from it. Then if it has three or more doom counters on it, sacrifice Lavabrink Floodgates. When you do, it deals 6 damage to each creature.

Amass Zombies 1. (Put a +1/+1 counter on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)

You and permanents you control gain hexproof until end of turn. (You and they can't be the targets of spells or abilities your opponents control.)

Whenever an opponent draws a card except the first one they draw in each of their draw steps, put a +1/+1 counter on Leela, Sevateem Warrior.

Doctor's companion (You can have two commanders if the other is the Doctor.)

Red creatures you control get +1/+0.

White creatures you control get +0/+1.

, Exile Legion's Initiative: Exile all creatures you control. At the beginning of the next combat, return those cards to the battlefield under their owner's control and those creatures gain haste until end of turn.

Draft Leovold's Operative face up.

As you draft a card, you may draft an additional card from that booster pack. If you do, turn Leovold's Operative face down, then pass the next booster pack without drafting a card from it. (You may look at that booster pack.)

Flying

Whenever you cast a noncreature spell, put a +1/+1 counter on Levitating Statue.

: Levitating Statue becomes a 1/1 Construct artifact creature until end of turn.

Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is the number of lands you control.

Exile target creature you control. Return that card to the battlefield under its owner's control at the beginning of the next end step.

When Liberated Livestock dies, create a 1/1 white Cat creature token with lifelink, a 1/1 white Bird creature token with flying, and a 2/4 white Ox creature token. For each of those tokens, you may put an Aura card from your hand and/or graveyard onto the battlefield attached to it.

Flash

Flying

You may cast colorless spells and artifact spells as though they had flash.

Whenever you cast a spell, if the amount of mana spent to cast that spell is greater than Liberator, Urza's Battlethopter's power, put a +1/+1 counter on Liberator.

All lands you control become 1/1 creatures until end of turn. They're still lands.

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

+1: Return up to one target creature card from your graveyard to your hand.

−3: Destroy target creature. Its controller loses 2 life.

−7: Target opponent loses 2 life for each creature card in their graveyard.

+1: Create a 2/2 black Zombie creature token. Mill two cards.

−3: Return target creature card from your graveyard to the battlefield. That creature is a black Zombie in addition to its other colors and types.

−7: Destroy all non-Zombie creatures.

Destroy target black creature or black planeswalker. If that permanent was a Liliana planeswalker, her controller loses 3 life.

Enchant creature

At the beginning of the end step of enchanted creature's controller, that player sacrifices that creature.

: Target permanent becomes an artifact in addition to its other types until end of turn.

Whenever you cast a noncreature spell, target creature gets +X/+0 until end of turn, where X is that spell's mana value.

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

: Choose another target creature. Its controller may exile it with an aegis counter on it.

, : Return all exiled cards with aegis counters on them to the battlefield under their owners' control.

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

: Loathsome Catoblepas must be blocked this turn if able.

When Loathsome Catoblepas dies, target creature an opponent controls gets -3/-3 until end of turn.