Warhammer 40,000 Commander

Instant

Choose a creature type. Creatures you control of the chosen type get +1/+0 and gain indestructible until end of turn.

And They Shall Know No Fear

Astartes Warrior

Defenders of Humanity

Enchantment

When this enchantment enters, create X 2/2 white Astartes Warrior creature tokens with vigilance.
{X}{2}{W}, Exile this enchantment: Create X 2/2 white Astartes Warrior creature tokens with vigilance. Activate only if you control no creatures and only during your turn.

Sorcery

Creatures you control get +2/+2 and gain vigilance and lifelink until end of turn.

For the Emperor!

Creature — Astartes Knight

Flash
Rites of Banishment — When this creature enters, destroy target attacking creature. If that creature is a Demon, exile it instead.

Grey Knight Paragon

Warhammer 40,000 Tokens

Royal Warden

Necron Monolith

Imotekh the Stormlord

Necron Warrior

Biotransference

Their Number Is Legion

Night Scythe

Token Artifact Creature — Necron Warrior

Space Marine Devastator

Creature — Astartes Warrior

Squad {2} (As an additional cost to cast this spell, you may pay {2} any number of times. When this creature enters, create that many tokens that are copies of it.)
Grav-cannon — When this creature enters, destroy up to one target artifact or enchantment.

Nurgle's Rot

Plaguebearer of Nurgle

Great Unclean One

Token Creature — Demon

Creature — Astartes Scout

First strike, vigilance
Concealed Position — When this creature enters, if an opponent controls more lands than you, you may search your library for a Plains card, put it onto the battlefield tapped, then shuffle.

Space Marine Scout

Ultramarines Honour Guard

Squad {2} (As an additional cost to cast this spell, you may pay {2} any number of times. When this creature enters, create that many tokens that are copies of it.)
Other creatures you control get +1/+1.

Genestealer Patriarch

Copy

Creature — Tyranid

Genestealer's Kiss — Whenever this creature attacks, put an infection counter on target creature defending player controls.
Children of the Cult — Whenever a creature with an infection counter on it dies, you create a token that's a copy of that creature, except it's a Tyranid in addition to its other types.

Creature — Demon

Flying
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Heralds of Tzeentch

Flying, ward {3}
Architect of Deception — When this creature enters, draw three cards.

Lord of Change

Sicarian Infiltrator

Artifact Creature — Human Soldier

Flash
Squad {2} (As an additional cost to cast this spell, you may pay {2} any number of times. When this creature enters, create that many tokens that are copies of it.)
Benediction of the Omnissiah — When this creature enters, draw a card.

Creature — Human Knight

Flash
Psychic Abomination — When this creature enters, counter target instant spell, sorcery spell, activated ability, or triggered ability.

Sister of Silence

Arco-Flagellant

Creature — Human

Squad {2} (As an additional cost to cast this spell, you may pay {2} any number of times. When this creature enters, create that many tokens that are copies of it.)
This creature can't block.
Endurant — Pay 3 life: This creature gains indestructible until end of turn.

Artifact Creature — Necron

Guardian Protocols — {3}{B}, Sacrifice this creature: Return all legendary creature cards from your graveyard to your hand.

Lychguard

Choose target creature you control. Destroy all creatures with power less than that creature's power.

Mandate of Abaddon

Flash
Synaptic Disintegrator — When this creature enters, destroy up to one target creature and target player mills three cards.

Necron Deathmark

At the beginning of your upkeep, put two eon counters on this enchantment, then mill cards equal to the number of eon counters on it.
If you would draw a card while your library has no cards in it, instead return a creature card from your graveyard to the battlefield. If you can't, you lose the game.

Out of the Tombs

Flying
Rot Fly — If an opponent would gain life, that player loses that much life instead.

Plague Drone

Creature — Zombie

Deathtouch
Curse of the Walking Pox — Whenever you cast a spell from anywhere other than your hand, return this card from your graveyard to the battlefield tapped.

Poxwalkers

Creature — Astartes Cleric

Lifelink
Blood Chalice — Whenever another creature you control dies, this creature deals 1 damage to any target.

Sanguinary Priest

Flash
Elite Troops — This creature enters with a +1/+1 counter on it for each creature that died this turn.

Sautekh Immortal

Deathtouch
Hyperphase Threshers — Whenever an artifact you control enters, this creature gains first strike until end of turn.

Skorpekh Destroyer

Lifelink
The Seven-fold Chant — At the beginning of your end step, if a creature died this turn, you draw a card and you lose 1 life. If seven or more creatures died this turn, instead you draw seven cards and you lose 7 life.

Tallyman of Nurgle

Create X tapped 2/2 black Necron Warrior artifact creature tokens, then you gain life equal to the number of artifacts you control. Exile Their Number Is Legion.
You may cast this card from your graveyard.

Creature — Demon Knight

Trample
Devastating Charge — Other creatures you control have trample.

Bloodcrusher of Khorne

Flying, trample
Whenever this creature deals combat damage to a player, untap it. After this phase, there is an additional combat phase.
This creature can't attack a player it has already attacked this turn.

Bloodthirster

Lord of Chaos — At the beginning of combat on your turn, another target creature you control gains double strike until end of turn.

Chaos Terminator Lord

Creature — Astartes Warlock

Gift of Chaos — {3}, {T}: The next noncreature spell you cast this turn has cascade. (When you cast that spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Dark Apostle

Artifact Creature — Knight

Trample
Frenzied Rampage — At the beginning of combat on your turn, choose an opponent at random. This creature attacks that player this combat if able.
When this creature dies, it deals 4 damage to target opponent chosen at random.

Knight Rampager

Haste
Allure of Slaanesh — Each opponent must attack with at least one creature each combat if able.

Seeker of Slaanesh

Creature — Tyranid Mutant

Ravenous (This creature enters with X +1/+1 counters on it. If X is 5 or more, draw a card when it enters.)
Trample
Heavy Power Hammer — Whenever this creature deals combat damage to a player, destroy target artifact or enchantment that player controls.

Aberrant

Lictor

Tyranid Warrior

Flash
Pheromone Trail — When this creature enters, if a creature entered the battlefield under an opponent's control this turn, create a 3/3 green Tyranid Warrior creature token with trample.

This creature enters with two +1/+1 counters on it.
Vanguard Species — Whenever this creature attacks, you may remove a +1/+1 counter from it. If you do, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Purestrain Genestealer

Tyranid Invasion

Create a number of 3/3 green Tyranid Warrior creature tokens with trample equal to the number of opponents you have.

Artifact Creature — Demon Construct

Trample
Battle Cannon — When this creature enters or dies, for each opponent, choose a nonland permanent that player controls. Destroy one of them chosen at random.

Chaos Defiler

Counter target spell, activated ability, or triggered ability. Its controller loses life equal to the number of creatures you control.

Deny the Witch

Creature — Astartes Wizard

Veil of Time — Whenever this creature attacks, you may cast a spell with mana value X or less from your hand without paying its mana cost, where X is the number of attacking creatures.

Epistolary Librarian

Nonland permanents your opponents control lose indestructible until end of turn.
Destroy all nonland permanents.

Exterminatus

When this enchantment enters, put a +1/+1 counter on each creature you control.
Creatures you control with +1/+1 counters on them are artifacts in addition to their other types.
Nonartifact creatures get -1/-1.

The Flesh Is Weak

Pink Horror

Blue Horror

Creature — Demon Horror

Coruscating Flames — Whenever you cast an instant or sorcery spell, this creature deals 2 damage to any target.
Split — When this creature dies, create two 2/2 blue and red Demon Horror creature tokens named Blue Horror with "Whenever you cast an instant or sorcery spell, this token deals 1 damage to any target."

Creature — Human Cleric

Medicus Ministorum — When this creature enters, return target creature card from your graveyard to the battlefield. You gain life equal to its mana value.

Sister Hospitaller

Legendary Artifact

Arcane Life-support — If you would lose the game, instead exile The Golden Throne and your life total becomes 1.
A Thousand Souls Die Every Day — {T}, Sacrifice a creature: Add three mana in any combination of colors.

The Golden Throne

Artifact — Vehicle

Trample
Rapid-fire Battle Cannon — When this Vehicle enters, it deals 4 damage to each opponent.
Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Knight Paladin

Thunderhawk Gunship

Flying
When this Vehicle enters, create two 2/2 white Astartes Warrior creature tokens with vigilance.
Whenever this Vehicle attacks, attacking creatures you control gain flying until end of turn.
Crew 2

Escalate—Tap an untapped creature you control. (Pay this cost for each mode chosen beyond the first.)
Choose one or more —
• Destroy target creature with power 4 or greater.
• Destroy target enchantment.
• Put a +1/+1 counter on each creature target player controls.

Collective Effort

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Destroy all nontoken creatures.

Hour of Reckoning

Launch the Fleet

Soldier

Strive — This spell costs {1} more to cast for each target beyond the first.
Until end of turn, any number of target creatures each gain "Whenever this creature attacks, create a 1/1 white Soldier creature token that's tapped and attacking."

Target creature and all other creatures with the same name as that creature get -3/-3 until end of turn.

Bile Blight

All creatures get -1/-1 until end of turn for each Swamp you control.

Mutilate

This spell costs {1} less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature.

Blasphemous Act

You may play an additional land this turn.
Draw a card.

Explore

Artifact — Equipment

Equipped creature gets +2/+2, has haste, can't attack you or planeswalkers you control, and can't be sacrificed.
At the beginning of each opponent's upkeep, you may have that player gain control of equipped creature until end of turn. If you do, untap it.
Equip {3}

Assault Suit

Land

This land enters tapped.
{T}: Add {W}, {U}, or {B}.

Arcane Sanctum

Command Tower

Tower Winder

{T}: Add one mana of any color in your commander's color identity.

Memorial to Glory

This land enters tapped.
{T}: Add {W}.
{3}{W}, {T}, Sacrifice this land: Create two 1/1 white Soldier creature tokens.