Warhammer 40,000 Commander

Defile

Defile {B}

Instant
Target creature gets -1/-1 until end of turn for each Swamp you control.
"Agresto, bring up the rear . . . Agresto?"
—Sergeant Dremark Eigen, last words
Defile

Defile {B}

Instant
Target creature gets -1/-1 until end of turn for each Swamp you control.
"Agresto, bring up the rear . . . Agresto?"
—Sergeant Dremark Eigen, last words
Dread Return

Dread Return {2}{B}{B}

Sorcery
Return target creature card from your graveyard to the battlefield.
Flashback—Sacrifice three creatures.
"Bolters, flamers, plasma—we hit the xenos with everything, and it just kept coming."
—Captain Uriel Ventris
Dread Return

Dread Return {2}{B}{B}

Sorcery
Return target creature card from your graveyard to the battlefield.
Flashback—Sacrifice three creatures.
"Bolters, flamers, plasma—we hit the xenos with everything, and it just kept coming."
—Captain Uriel Ventris
Go for the Throat

Go for the Throat {1}{B}

Instant
Destroy target nonartifact creature.
"Pray that night is upon us, for if this twilight is the work of the Necrons, we are all dead men."
—Address by Lieutenant Krakos prior to the Bloodmoon Massacres
Go for the Throat

Go for the Throat {1}{B}

Instant
Destroy target nonartifact creature.
"Pray that night is upon us, for if this twilight is the work of the Necrons, we are all dead men."
—Address by Lieutenant Krakow prior to the Bloodmoon Massacres
Living Death

Living Death {3}{B}{B}

Sorcery
Each player exiles all creature cards from their graveyard, then sacrifices all creatures they control, then puts all cards they exiled this way onto the battlefield.
Living Death

Living Death {3}{B}{B}

Sorcery
Each player exiles all creature cards from their graveyard, then sacrifices all creatures they control, then puts all cards they exiled this way onto the battlefield.
Mutilate

Mutilate {2}{B}{B}

Sorcery
All creatures get -1/-1 until end of turn for each Swamp you control.
"You mortals turn to dust in the blink of an eye. I only expedite your fate."
Mutilate

Mutilate {2}{B}{B}

Sorcery
All creatures get -1/-1 until end of turn for each Swamp you control.
"You mortals turn to dust in the blink of an eye. I only expedite your fate."
Blasphemous Act

Blasphemous Act {8}{R}

Sorcery
This spell costs {1} less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature.
In the roiling depths of the Eye of Terror, the bloodthirsty hordes of Chaos Marines plot the downfall of their loyalist brethren.
Blasphemous Act

Blasphemous Act {8}{R}

Sorcery
This spell costs {1} less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature.
In the roiling depths of the Eye of Terror, the bloodthirsty hordes of Chaos Marines plot the downfall of their loyalist brethren.
Chaos Warp

Chaos Warp {2}{R}

Instant
The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.
"Tzeentch cares not what they were or what they become. Only that they change."
—Kairos Fateweaver
Chaos Warp

Chaos Warp {2}{R}

Instant
The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.
"Tzeentch cares not what they were or what they become. Only that they change."
—Kairos Fateweaver
Past in Flames

Past in Flames {3}{R}

Sorcery
Each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.
Flashback {4}{R}
Past in Flames

Past in Flames {3}{R}

Sorcery
Each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.
Flashback {4}{R}
Reverberate

Reverberate {R}{R}

Instant
Copy target instant or sorcery spell. You may choose new targets for the copy.
"That which was, will be. That which will be, was."
—Kairos Fateweaver
Reverberate

Reverberate {R}{R}

Instant
Copy target instant or sorcery spell. You may choose new targets for the copy.
"That which was, will be. That which will be, was."
—Kairos Fateweaver
Starstorm

Starstorm {X}{R}{R}

Instant
Starstorm deals X damage to each creature.
Cycling {3}
"They're beasts! What are they going to do, bomb us from orbit?"
—Platoon Commander Cyrus Jalili, Prandium Defence Auxilia
Starstorm

Starstorm {X}{R}{R}

Instant
Starstorm deals X damage to each creature.
Cycling {3}
"They're beasts! What are they going to do, bomb us from orbit?"
—Platoon Commander Cyrus Jalili, Prandium Defense Auxilia
Warstorm Surge

Warstorm Surge {5}{R}

Enchantment
Whenever a creature you control enters, it deals damage equal to its power to any target.
Khorne's sole desire is to drown the galaxy in a tide of slaughter. To conquer and kill every living thing, until there is nothing left but spilled blood and shattered bone.
Warstorm Surge

Warstorm Surge {5}{R}

Enchantment
Whenever a creature you control enters, it deals damage equal to its power to any target.
Khorne's sole desire is to drown the galaxy in a tide of slaughter. To conquer and kill every living thing, until there is nothing left but spilled blood and shattered bone.
Abundance

Abundance {2}{G}{G}

Enchantment
If you would draw a card, you may instead choose land or nonland and reveal cards from the top of your library until you reveal a card of the chosen kind. Put that card into your hand and put all other cards revealed this way on the bottom of your library in any order.
Abundance

Abundance {2}{G}{G}

Enchantment
If you would draw a card, you may instead choose land or nonland and reveal cards from the top of your library until you reveal a card of the chosen kind. Put that card into your hand and put all other cards revealed this way on the bottom of your library in any order.
Cultivate

Cultivate {2}{G}

Sorcery
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
A single spore from a Tyranid Hive Ship can spell doom for a solar system.