7 Warhammer 40k Chaos Faction Packs Arrive With New Detachments + Rules

Spikey Bits » 11th Edition 40k » 7 Warhammer 40k Chaos Faction Packs Arrive With New Detachments + Rules

Warhammer 40k Chaos Faction Packs just dropped for 11th Edition, bringing 21 new detachments and rules updates across all 7 heretic armies.

GW just dropped 11th Edition Chaos Faction Packs for seven armies with twenty-one brand new detachments, and a rules updates section in every single PDF, making this the biggest patch they have seen since the start of 10th. 

This is the third day in a row that GW has handed out a wall of patch notes for 11th edition rules, following the Space Marine pack drop earlier this week and Xenos yesterday. Now the Empyrean is getting its turn, and the changes go far beyond the three new detachments per army we saw in the detachment previews

How Detachment Points Work in This Faction Pack Drop

Honestly, before we walk through the per-faction changes, the Detachment Points framework is worth a paragraph because every single pack in this drop bolts onto it.

Here’s the framework that Chaos (and all other factions) detachments run on now.

• You get 2 DP at 1,000 points and 3 DP at 2,000 points, with each detachment in the pack carrying a 1, 2, or 3 DP price tag.
• Which means at a 2,000-point list, you can split a 1 plus a 2, run three 1-DPs stacked into one brew, or grab a single 3-DP behemoth like Creations of Bile or Pactbound Zealots, depending on the army theme or shape you want.

Every detachment also has a Force Disposition tag: Take and Hold, Purge the Foe, Reconnaissance, Priority Assets, or Disruption. Then those tags get tied to mission rewards, so picking your detachment is also picking the mission shape you want to play.

Plus, the Aircraft change is universal across every faction, with Movement and OC both set to dash, and certain dual-mode Vehicles are now locked to one form or the other.

Chaos Space Marines Get the Biggest Patch Note Wall of All the Faction Packs

Honestly, the CSM Rules Updates page runs longer than most of the other faction packs combined, and the changes touch everything from the army’s headline daemon engine down to its rank-and-file Core Abilities.

Three new 1-DP detachments arrived for the Traitor Legions:

• Cabal of Chaos (Disruption, 1 DP)
• Devotees of Destruction (Priority Assets, 1 DP)
• Murdertalon Raiders (Purge the Foe, 1 DP)

Here’s what changed in the new Chaos Space Marines faction pack for 11th edition:

• Heldrake: loses the AIRCRAFT keyword; Move drops to 12″, OC drops to a dash
• Master of Executions: Core Ability changes from Leader to Support. He doesn’t attach to Chosen and Legionaries the same way anymore.
• Lord Discordant on Helstalker: Move changed to 14″
• Vashtorr the Arkifane: picks up Indentured Daemon Engines (Lone Operative when within 3″ of a Daemon Vehicle), a rewritten Reorder Reality penalty, +Strength aura on nearby Daemon Engines, and brand new Vashtorr’s Hammer Strike and Sweep profiles.
• Stratagem range nerfs: several “9-inch trigger” stratagems across Deceptors, Veterans of the Long War, and other detachments drop to 8″.
• Vehicles get FRAME: Land Raider, Rhino, both Predators, Vindicator, Khorne Lord of Skulls, and the Noctilith Crown all pick up the new keyword for scenic-base compatibility.

So the Lord Disco that Iron Warriors players have been jamming into every list since the 10e codex dropped just became faster daemon engine, and the FRAME keyword is the same now across every other Chaos Faction Pack in the same drop.

It’s the universal change GW called out in its post, where the keyword groups together the larger miniatures without standard bases, so the rules about measuring from a specific point on the body keep working, no matter how scenic your conversion gets.

World Eaters Faction Pack Trade Subtle Triggers for Brute-Force Numbers

The World Eaters update tells you the design team decided every conditional rule needed to get simpler. Basically, all the army specific language is rolled into core rules and it takes a lot of the random rolling out of the game.

Three new 1-DP detachments arrived for the Sons of Khorne:

• Butchers of Khorne (Disruption, 1 DP)
• Brazen Engines (Purge the Foe, 1 DP)
• Vessels of Wrath (Priority Assets, 1 DP)

Here’s what’s new in the World Eaters faction pack for 11th edition:

• Blessings of Khorne, Unbridled Bloodlust: simplifies to “this unit has +1 to charge rolls.” Flat number, no trigger language.
• Maulerfiend, Scent of Blood: now triggers off enemies within 9″, not the target of the charge, keeping the +1 / +2 ladder against below-Starting-Strength and below-half-strength enemies.
• Khorne Berzerkers, Jakhals Icon of Khorne: refactored to a Bloodshed-point system that earns dice off destroyed enemy units and then dumps them into the Blessings of Khorne roll.
• Chaos Terminators, Blood Fury: reworked to give ranged attacks against the closest eligible target, re-rolls to hit, and a charge re-roll that locks the unit onto the closest target.
• Helbrute, Frenzy: now once-per-turn fight-back when an enemy unit targets the Helbrute in the Fight phase, and the Helbrute must be selected to fight next.
• Heldrake: same Move 12″ and no-AIRCRAFT update as the CSM pack.
• Vehicles get FRAME: Land Raider, Rhino, both Predators, and the Khorne Lord of Skulls all pick up the new keyword.

So your Maulerfiend now picks up its charge bonus by being near a bloodied unit, not by punching one, which makes it dramatically more reliable in a battle line packed with wounded targets. And the Slaughterbound at S10 keeps World Eaters’ core combat threat dangerous against chunkier infantry brackets that the new edition has been pushing.

Emperor’s Children Faction Pack Hands Fulgrim a Brand New Ability

Fulgrim picks up a brand new Serpentine ability in this pack, and that’s a real addition rather than a wording cleanup. The Emperor’s Children Primarch flagship just got a mobility buff that he needed in a new edition, where ruins are still expensive to climb. 

Three new 1-DP detachments arrived for the followers of Slaanesh:

• Elegant Brutes (Take and Hold, 1 DP)
• Frenzied Host (Disruption, 1 DP)
• Spectacle of Slaughter (Purge the Foe, 1 DP)

Here’s what changed in the Emperor’s Children faction pack for 11th edition:

• Fulgrim (new ability): Serpentine lets him cross terrain features 4″ or less in height during Normal, Advance, or Fall Back moves.
• Heldrake: Move 12″, AIRCRAFT removed, and Save bumped to 3+ (different from the CSM Heldrake, lined up with other Slaaneshi vehicles).
• Infractors and Tormentors: power swords drop to Strength 5.
• Flawless Blades: Blissblade drops to Attacks 4.
• Chaos Spawn, Scuttling Horrors: trigger range drops from 9″ to 8″, and a new condition adds that the Spawn can’t already be in Engagement Range when they react (the 6″ Normal move itself is unchanged).
• Chaos Terminators, Lethal Obsession: rewritten so the post-shooting target is now any enemy unit hit by the unit’s ranged attacks (the old rule needed every attack to target the same unit), and the unit must end its charge move engaged with that enemy.
• Mercurial Host detachment, Dark Vigour Stratagem: range drops from 9″ to 8″.
• Vehicles get FRAME: Land Raider and Chaos Rhino pick up the new keyword.

So a flat number replaces a variable, again, on the Spawn Scuttling Horrors rule. It’s obvious GW is using this edition to clean up a lot of the random keywords, and we’d expect that simplification on the Imperial packs tomorrow, too. 

Death Guard Faction Packs Hands Nurgle’s Gift a Hard Ceiling

So Nurgle’s Gift just got capped some. Yup, the modifier-stacking enhancements that pushed the Contagion bubble out further are now bouncing off a hard ceiling.

Three new 1-DP detachments arrived for the Plague Legions:

• Paragons of Putrescence (Priority Assets, 1 DP)
• Contagion Engines (Purge the Foe, 1 DP)
• Flyblown Host (Reconnaissance, 1 DP)

Here’s what shifted in the Death Guard pack:

• Nurgle’s Gift, Contagion Range: explicit “cannot be greater than 12″ after modifiers” cap.
• Nurgle’s Gift, Skullsquirm Blight: full rewrite to “each time a model in this unit makes a melee attack, subtract 1 from the Hit roll.”
• Deathshroud Terminators, Death Approaches: Deep Strike at more than 6″ away from Afflicted enemy units, more than 8″ from everything else.
• Tallyband Summoners, Beckoning Blight Enhancement: Plague Legions Deep Striking within 12″ of the bearer drop at more than 6″, not 8″.
• Vehicles get FRAME: Land Raider, both Predators, Rhino, Miasmic Malignifier, and the Plagueburst Crawler pick up the new keyword.
• FAQ clarification: the Plagueburst Crawler’s Spore-laced Shock Waves does NOT inflict mortal wounds every turn against units affected by the ability.

Now, the Death Guard’s answer to a forward objective is “drop in tight on the unit your Nurgle’s Gift already touched,” and if you’ve been running Tallyband Summoners specifically to push your Contagion Range, your bubble just got cut down to size. Plus, the FAQ clarification on Spore-laced Shock Waves is the kind of cleanup that means at least one TO got a rules query they didn’t want to answer.

Thousand Sons Faction Pack Gets a Ritual Rewrite and a Firing Deck Rhino

The Thousand Sons pack feels like the design team rewrote every Cabal of Sorcerers Ritual from scratch. Meanwhile the Daemon Prince of Tzeentch with Wings picks up a tighter Deep Strike window, and the Chaos Rhino somehow gains Firing Deck 2 specifically on the Tzeentch list.

Three new 1-DP detachments arrived for the sons of Magnus:

• Ritual of Regeneration (Purge the Foe, 1 DP)
• Sekhetar Cohort (Priority Assets, 1 DP)
• Servants of Change (Reconnaissance, 1 DP)

Here’s what new in the Thousand Sons faction pack for 11th edition:

• Cabal of Sorcerers: locked specifically to the THOUSAND SONS Army Faction in its opening line, closing the loophole where a Scintillating Legion sub-detachment might have claimed it.
• Destiny’s Ruin (Ritual): 24″ range, baseline re-roll of 1s to hit against the target; 10+ cast result re-rolls the whole hit roll.
• Temporal Surge (Ritual): 24″ range, D6″ Normal move for the target unit; 10+ cast result swaps the D6″ for a flat 6″.
• Twist of Fate (Ritual): 24″ range, +1 AP against the target; 12+ cast result jumps the AP buff to +2.
• Chaos Rhino: picks up Firing Deck 2 (Tzeentch list only).
• Flamers and Screamers: Leadership drops to 7+.
• Kairos Fateweaver, Infernal Gateway: profile rewritten with new Witchfire and Focused Witchfire stat lines.
• Lord of Change: Bolt of Change Witchfire and Focused Witchfire profiles rewritten plus a fresh Rod of Sorcery line.
• Mutalith Vortex Beast, Immaterial Flare: aura tightened so it can’t stack with other Psychic test modifiers.
• Vehicles get FRAME: Land Raider, both Predators, Rhino, and Chaos Vindicator all pick up the new keyword.

So a Marked by Fate Sorcerer in Terminator Armor is a real buff for Rubricae armed with bolters, and the Firing Deck 2 Chaos Rhino is a genuinely odd addition to the Tzeentch list that nobody saw coming, just as Tzeentch likes it.

Chaos Knights Faction Pack Get Sharper Knight Abominant Warp Storms

Overall, the Chaos Knights pack is the shortest of the seven, but it tucks in a couple of substantive updates. Every War Dog Stalker just got easier to play, and Infernal Lance picks up a per-phase save choice that flexes against mixed shooting and Devastating Wounds output.

Three new 1-DP detachments arrived for the fallen houses:

• Bastions of Tyranny (Disruption, 1 DP)
• Hunting Warpack (Reconnaissance, 1 DP)
• Iconoclast Fiefdom (Take and Hold, 1 DP)

Here’s what’s new in the Chaos Knights faction pack for 11th edition:

• Harbingers of Dread, Darkness: the Dread ability collapses to “this model has Stealth,” dropping the previous Benefit of Cover effect entirely. So War Dog Stalkers keep the Stealth pip but lose the BoC tag, which is a small but real nerf despite the simpler wording.
• Knight Abominant, Warp Storms: standardized wording at the end of your Movement phase, roll one D6 for each enemy unit within 9″, on a 3+ that unit suffers D3 mortal wounds. Matches the current Wahapedia 10th edition wording.
• Infernal Lance, Malefic Surge (Detachment Rule): Unnatural Fortitude becomes a per-phase pick between 5+ invulnerable saves or Feel No Pain 6+.
• Houndpack Lance, Harrying Hounds Stratagem: range drops from 9″ to 8″.
• Houndpack Lance, Animalistic Rage Stratagem: trigger window clarified to “your opponent’s Shooting phase or the Fight phase, just after a WAR DOG unit that has not been selected to attack this phase is destroyed.”
• Lords of Dread, Mirror of Fates Enhancement: rewritten so enemy stratagems targeting units within 12″ cost +1CP (same shape as Cypher’s Agent of Discord pattern).
• Lords of Dread, Claimed for the Dark Gods Stratagem: moved to the start of your Command phase.
• Traitoris Lance, Imperious Advance Stratagem: rewritten to let one of your units move through models and terrain features without the Super-heavy Walker ability interfering.

The Knight Abominant Warp Storms cleanup matches the most recent FAQs for 10th, so maybe this is a consolidation of an earlier FAQ change into the pack rather than something totally new for 11th. Overall, the choice of Malefic Surge effects will change how Infernal Lance plays the most, though.

Chaos Daemons Are Staying an Index

Chaos Daemons didn’t really get a “full update” in this faction pack, which tracks with what GW has already said about them staying as an Index army with units folded into the other big Chaos codexes.

Still, they did grab some Three new 1-DP detachments: 

• Cavalcade of Chaos (Disruption, 1 DP)
• Lords of the Warp (Purge the Foe, 1 DP)
• Warptide (Reconnaissance, 1 DP)

Maybe they’ll get a proper rewrite down the road, but for now, this update is pretty light. They basically walked away with an FAQ section and three new detachments, which is something, but not exactly a full Daemonic glow-up.

Grab Your Chaos Faction Pack 40k Download Now

All seven Chaos Faction Packs are live on the Warhammer 40,000 downloads page right now, free, and stamped legal for the start of 11th edition. Check out the new changes to your army and start building your lists around the new detachments!

Final Thoughts on the Chaos Faction Pack 40k Drop

Bottom line, the Chaos faction pack updates are the second-to-last drop, and GW promised the Imperial factions will drop tomorrow. Once that’s out, almost all of the 11th Edition rules are out in the wild for free; just be on the lookout for points and missions via the tournament companion soon as well.

Either way, every Chaos Codex on the market just got a footnote it needs to print on every datasheet, and the 2026 release roadmap keeps churning toward the official Armageddon launch on June 20th!

🔗 Related Reads:

• New 11th Edition Chaos Space Marines Detachments Drop Alongside 3 Daemon Detachments
• New Warhammer 40k 11th Edition Space Marines Rules Drop With No Patch Notes
• Grab the Latest 40k Faction Packs, Free Rules Now
• 11th Edition 40k Q&A Reveals Big Changes for 2026
• Warhammer 40k 11th Edition Rules Hub
• 40k Chaos Gods Guide: The Dark Forces of The Warp
• Updated Warhammer 40k 2026 Roadmap, Release Schedule After Armageddon

What’s your read on the new Chaos Faction Pack 40k rules, and which Chaos army did the patch notes treat best?

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