TEXT: 1
  WARHAMMER 40,000 – CODEX: CHAOS SPACE MARINES
   
  CODEX: CHAOS SPACE MARINES
  Indomitus Version 1.1
  These documents collect amendments to the rules and present 
  our responses to players’ frequently asked questions. Often 
  these amendments are updates necessitated by new releases or 
  community feedback; these can be identified by the presence 
  of an asterisk before the page reference. At other times, these 
  amendments are errata designed to correct mistakes or add 
  clarity to a rule that is not as clear as it might be. 
  As they’re revised regularly, each of these documents has a 
  version number; where a version number has a letter, e.g. 1.1a, 
  this means it has had a local amendment, only in that language, 
  to clarify a translation issue or other minor correction. When 
  a document is revised, the version number will be incremented 
  and new updates will be highlighted in blue, while new errata 
  and FAQs will be highlighted in magenta.
  Please note that the updates and errata at the beginning of this 
  document refer to the second edition of Codex: Chaos Space 
  Marines. Updates and errata to the first edition of this Codex 
  can be found at the end of this document. The FAQ section is 
  applicable to both editions of the Codex.
  DESIGNER’S NOTES
  WEAPON UPDATES
  Several weapon profiles were updated in the 2020 edition of 
  Codex: Space Marines. As a result, where those same weapons 
  appear in this publication, they are updated to match. We have 
  also updated the wording of certain weapons’ abilities that would 
  explode or inflict mortal wounds on hit rolls of 1, so that they now 
  only do so on unmodified hit rolls of 1. The weapons in question, 
  and the updated profiles for them, are found at the end of this 
  document, and should be changed wherever they appear in this 
  book. In addition, replace every instance of ‘chainsword’ within 
  the rules section of this book with ‘Astartes chainsword’.
  Having updated several weapon profiles, we have also reviewed 
  those Relics that replace one of the updated weapons. As a result, 
  we have decided to update a few Relics to ensure that they are not 
  worse (e.g. have a lower Strength characteristic) than the weapons 
  they replace.
  UPDATES & ERRATA
  All Heretic Astartes and Fallen datasheets (excluding 
  Chaos Cultists) 
  Add the following ability:
  ‘Hateful Assault: If this unit makes a charge move, is charged 
  or performs a Heroic Intervention, add 1 to the Attacks 
  characteristic of models in this unit until the end of the turn.’
  *Page 122 – Khârn the Betrayer, Abilities, The Betrayer
  Change to read:
  ‘You cannot re-roll or modify hit rolls of 1 made for Khârn the 
  Betrayer in the Fight phase. Instead, those attacks automatically 
  hit another friendly unit within Engagement Range of Khârn. 
  Randomly determine which unit is hit if there is more than one. 
  If there are no other friendly units within Engagement Range of 
  Khârn, the hits are discarded.’
  Page 143 – Noise Marines, Abilities, Music of the Apocalypse
  Change the second sentence to read:
  ‘Do not remove the destroyed model yet – after the attacking 
  unit has finished making all its attacks, the destroyed model 
  can shoot with one of its ranged weapons as if it were your 
  Shooting phase.’
  Page 147 – Obliterators, fleshmetal guns
  Change the first sentence to read:
  ‘Each time this unit is chosen to attack with fleshmetal guns, roll 
  three D3, one after the other, to determine the characteristics of 
  the unit’s fleshmetal guns when resolving those attacks.’
  *Page 148 and 156 – Chaos Vindicator and Ranged Weapons 
  list, demolisher cannon
  Change Type characteristic to Heavy D6 and Abilities to ‘Blast’.
  *Page 149 – Chaos Land Raider, Abilities, Daemonic 
  Machine Spirit
  Delete this ability.
  Page 162 – Chaos Space Marine Units
  Add the following at the end of the first paragraph:
  ‘Fabius Bile can be included in a Detachment without 
  preventing it from being a Chaos Space Marines Detachment. 
  Page 163 – Legion Traits, rules text
  Change the first sentence to read: 
  ‘If your army is Battle-forged, all Character, Infantry, Biker 
  and Helbrute units in Chaos Space Marines Detachments gain 
  a Legion Trait, so long as every unit in that Detachment is from 
  the same Legion.’
  *Page 164 – Stratagems, Chaos Boon, Spawndom
  Change the third sentence to the following:
  ‘If you do so, set up the Chaos Spawn within 6" of the Character 
  and not within Engagement Range of any enemy units before 
  removing them as a casualty.’
  
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  WARHAMMER 40,000 – CODEX: CHAOS SPACE MARINES
  Page 166 – Stratagems, Forward Operatives 
  Change to read: 
  ‘Use this Stratagem during deployment, when you set up an Alpha 
  Legion Infantry unit from your army. At the start of the first battle 
  round but before the first turn begins, you can move that unit up 
  to 9". It cannot end this move within 9" of any enemy models. If 
  both players have units that can move before the first turn begins, 
  the player who is taking the first turn moves their units first. Each 
  unit can only be selected for this Stratagem once per battle.’
  *Page 168 – Warptime
  Change the second sentence to read:
  ‘If manifested, pick a Heretic Astartes unit (excluding Aircraft) 
  within 3" of the Psyker.’
  *Page 168 – Dark Hereticus Discipline, Gift of Chaos, rules text
  Change the fourth sentence to read:
  ‘If a Character is destroyed by this power, you can add a Chaos 
  Spawn to your army within 6" of the Character and not within 
  Engagement Range of any enemy units before they are removed as 
  a casualty.’
  Page 170 – Artefacts of Chaos, The Black Mace
  Change the first and second sentence to read: 
  ‘Model with power maul or accursed crozius only. The Black Mace 
  replaces the bearer’s power maul or accursed crozius and has the 
  following profile:’
  Page 171 – Artefacts of Chaos, The Cursed Crozius
  Change the first and second sentence to read: 
  ‘Word Bearers model with power maul or accursed crozius only. 
  The Cursed Crozius replaces the bearer’s power maul or accursed 
  crozius and has the following profile:’
  *Page 170 – Artefacts of Chaos, Puscleaver
  Change the Strength characteristic of this weapon to ‘+1’.
  *Page 171 – Artefacts of Chaos, Claws of the Black Hunt, 
  rules text
  Change the first sentence of this Relic’s abilities to read: 
  ‘Increase the wielder’s Attacks characteristic by 2.’
  Page 173 – Legion Warlord Traits, Word Bearers: The Voice 
  of Lorgar
  Change the rule to read: 
  ‘Increases the range of your Warlord’s aura abilities (e.g. Lord of 
  Chaos, Demagogue) by 3". Increase the range of any Prayers to the 
  Dark Gods chanted by your Warlord by 3".’
  FAQs
  Q. Does a Dark Apostle have to be on the battlefield to chant 
  a prayer? 
  A: Yes.
  Q. When should I roll to determine the characteristics of my 
  Obliterators’ fleshmetal guns? 
  A. Determine these characteristics in step 1 of the Shooting 
  sequence, when you select the unit to shoot.
  Q: Does the additional attack granted from the Butcher’s Nails 
  Legion Trait still apply if the unit is fighting for a second time, or 
  is the additional attack only applied the first time the unit fights in 
  that Fight phase? 
  A: Each model in the unit can specifically make one additional 
  attack in the subsequent Fight phase, therefore it only applies the 
  first time that unit fights in that Fight phase.
  Q: If I use the Fire Frenzy Stratagem and the nearest visible enemy 
  unit is subject to the Look Out, Sir rule, but there is another enemy 
  unit closer that is not visible and not subject to the Look Out, Sir 
  rule, who do I target?
  A: In such instances, you must target the nearest visible enemy unit 
  that is not subject to the Look Out, Sir rule.
  Q: If I choose not to select a Mark of Chaos for Greater Possessed, 
  which units (if any) can benefit from its Locus of Power ability?
  A: Only <Legion> Daemon units that you have also chosen not to 
  select a Mark of Chaos for.
  Q: Can a model use the Incursion psychic power to summon a unit 
  even if it has moved during this turn? What about if it has already 
  used the Daemonic Ritual ability this turn? 
  A: Yes in either case.
  Q: When using the Chaos Familiar Stratagem to replace a psychic 
  power, can I select a <Mark of Chaos> psychic power from the Dark 
  Hereticus discipline that the Psyker would be eligible for?
  A: Yes.
  Q: If I use the Daemon Shell or Flakk Missile Stratagem and I hit, 
  do I continue to roll to wound and do damage normally in addition 
  to doing mortal wounds?
  A: No, the normal attack sequence ends.
  Q: How should Perils of the Warp be resolved against Rubric 
  Marine units led by an Aspiring Sorcerer?
  A: Any mortal wounds suffered are applied to the Sorcerer’s unit, so 
  can be applied to another model if you wish (if a model in that unit 
  has already suffered any wounds, any mortal wounds must still be 
  applied to this model first). 
  Q: If the Aspiring Sorcerer or Scarab Occult Sorcerer from a unit 
  has been destroyed, is this unit still treated as being a Psyker?
  A: Yes. 
  Designer’s Note: Whilst these units would not be able to manifest 
  or deny any psychic powers, any abilities, objectives or effects which 
  affect psykers are still likely to affect these warp-infused animated 
  suits of armour.
  Q: Can the Killshot Stratagem be used to affect 
  Hellforged Predators?
  A: No. The Killshot Stratagem can only be used to affect models 
  using the Chaos Predator datasheet.
  
  3
  WARHAMMER 40,000 – CODEX: CHAOS SPACE MARINES
  Q: If I have a Daemon model that can only be included once in my 
  army – for example, the Changeling – and that model is destroyed 
  during the game, can I use Daemonic Ritual to attempt to summon 
  it and add it to my army again?
  A: Yes. Note that if you’re playing a game that uses a points limit 
  you’ll need the appropriate reinforcement points to do so.
  Q: Does disembarking effectively prevent a Chaos Character 
  from summoning a Daemon unit that turn using the Daemonic 
  Ritual ability?
  A: Yes. Models that disembark count as having moved for all rules 
  purposes, including Daemonic Ritual.
  Q: Can a Noise Marine use his Music of the Apocalypse ability if he 
  flees the battlefield?
  A: No. This ability can only be used when the model is destroyed.
  Q: If several Noise Marines are destroyed in the same attack, can 
  they each use their Music of the Apocalypse ability to throw a 
  grenade, or can only one of them do so?
  A: Each of them can throw a grenade.
  Q: Maulerfiends have a wargear option to ‘replace both magma 
  cutters with lasher tendrils’. Does this mean I replace both magma 
  cutters for a single ‘lasher tendrils’ weapon, or do I get two ‘lasher 
  tendrils’ weapons?
  A: You replace both magma cutters with a single ‘lasher 
  tendrils’ weapon.
  Q: If I take a unit of Daemons in a Chaos Space Marines 
  Detachment, do I lose my Legion Trait? 
  A: Yes. However, if you summon a unit of Daemons and add them 
  to your army, doing so does not affect your Legion Trait.
  Q: If I give a unit in my army an Icon of Vengeance, then at the 
  start of my first turn use the Beseech the Chaos Gods Stratagem to 
  make that unit dedicated to Khorne, Tzeentch, Nurgle or Slaanesh, 
  does the unit swap its Icon of Vengeance for the Chaos Icon of their 
  god, or does it keep the Icon of Vengeance?
  A: It keeps the Icon of Vengeance.
  Q: If I roll a 12 on the Chaos Boon table, when adding a Daemon 
  Prince to my army, which Daemon Prince datasheet should I use 
  – the Daemon Prince or the Daemon Prince of Chaos? In addition, 
  what wargear options can it take?
  A: Use the Daemon Prince datasheet from Codex: Chaos Space 
  Marines. The model can be equipped with any of its normal 
  wargear options, providing you have the right model and it is 
  built appropriately. 
  Q: Are the bonus attacks from Death to the False Emperor and the 
  Excess of Violence Stratagem cumulative? For example, if a model 
  with an Attacks characteristic of 1 rolled a hit roll of 6+ when 
  attacking an Imperium unit (thereby giving it an extra attack) and 
  then both of those attacks killed enemy models, would I then make 
  two extra attacks for that model? If yes, what happens if I roll hit 
  rolls of 6+ for these attacks?
  A: Yes, they are cumulative. In the example given, you would 
  make two extra attacks but any further hit rolls of 6+ (and 
  any subsequent models destroyed) would not generate any 
  further attacks.
  Q: If an enemy Character is destroyed by the Gift of Chaos 
  or Possession psychic power, do I need to have the appropriate 
  reinforcement points set aside in order to set up the Chaos Spawn or 
  Greater Possessed?
  A: Yes, if you are playing a game that uses a points limit.
  Q: If I manifest the Gift of Chaos psychic power, and target a unit 
  whose models have different Toughness characteristics, which one 
  should I use?
  A: Use the highest Toughness characteristic in the target unit.
  Q: Do modifications to Haarken Worldclaimer’s Attacks 
  characteristic due to his Head-claimer ability last until the end of 
  the battle?
  A: Yes.
  
  4
  WARHAMMER 40,000 – CODEX: CHAOS SPACE MARINES
  APPENDIX
  The following errata apply only to the first edition of Codex: Chaos 
  Space Marines.
  Page 116 – <Mark of Chaos>
  Add the following to the last paragraph:
  ‘If a unit has the Tzeentch, Nurgle or Slaanesh keywords, it 
  cannot be from the World Eaters Legion, and if a unit has the 
  Khorne, Tzeentch or Nurgle keywords, it cannot be from the 
  Emperor’s Children Legion. In addition, Psykers cannot be from 
  the World Eaters Legion.’
  Page 117 – Champion Equipment 
  Change the second heading to read:
  ‘One of the champion’s weapons can be chosen from the 
  following list:’
  Page 117 – Daemonic Ritual, rules text
  Change the third sentence of the third paragraph to read:
  ‘This unit is treated as reinforcements for your army and can be 
  placed anywhere on the battlefield that is wholly within 12" of the 
  Character and more than 9" from any enemy model.’
  *Page 120 – Khârn the Betrayer, Abilities, The Betrayer
  Change to read:
  ‘You cannot re-roll or modify hit rolls of 1 made for Khârn the 
  Betrayer in the Fight phase. Instead, those attacks automatically 
  hit another friendly unit within Engagement Range of Khârn. 
  Randomly determine which unit is hit if there is more than one. 
  If there are no other friendly units within Engagement Range of 
  Khârn, the hits are discarded.’
  Page 121 – Cypher, Abilities
  Add the following ability:
  ‘No-one’s Puppet: Cypher cannot use the Daemonic Ritual 
  ability, even though he has the Chaos and Character keywords.’
  Page 129 – Bloodletters
  Add ‘Daemon’ to the Faction keywords line.
  Remove ‘Daemon’ from the keywords line.
  Page 131 – Plaguebearers
  Add ‘Daemon’ to the Faction keywords line.
  Remove ‘Daemon’ from the keywords line.
  Page 131 – Daemonettes
  Add ‘Daemon’ to the Faction keywords line.
  Remove ‘Daemon’ from the keywords line.
  Page 132 – Khorne Berzerkers, Abilities
  Add the following ability:
  ‘Berzerker Horde: The Battlefield Role of World Eaters Khorne 
  Berzerkers is Troops instead of Elites.’
  Page 135 – Noise Marines, Abilities, Music of the Apocalypse
  Change the second sentence to read:
  ‘Do not remove the destroyed model yet – after the attacking unit 
  has finished making all its attacks, the destroyed model can shoot 
  with one of its ranged weapons as if it were your Shooting phase.’
  Page 135 – Noise Marines, Abilities
  Add the following ability:
  ‘Masters of the Kakophoni: The Battlefield Role of Emperor’s 
  Children Noise Marines is Troops instead of Elites.’
  Page 136 – Chosen, Wargear Options
  Change this unit’s wargear options to read:
  ‘•  Any Chosen may take one item from the Melee Weapons list.
   •  Up to four Chosen may choose one of the following options:
      •  Replace his bolt pistol with a plasma pistol.
      •  Replace his boltgun with one item from the Combi-weapons or 
  Special Weapons lists.
      •  Replace his boltgun and bolt pistol with a lightning claw.
   •  An additional Chosen may replace his boltgun with one item 
  from the Special Weapons or Heavy Weapons lists.
   •  The Chosen Champion may either take one item from the Melee 
  Weapons list, or replace his boltgun and bolt pistol with items 
  from the Champion Equipment list.
   •  One model may take a Chaos Icon (pg 153).’
  Page 138 – Helbrute, Wargear Options
  Change the third bullet point to read:
  ‘•  This model may replace each Helbrute fist with a Helbrute 
  hammer or power scourge.’
  Page 142 – Obliterators, fleshmetal guns
  Change the first sentence to read:
  ‘Each time this unit is chosen to attack with fleshmetal guns, roll 
  three D3, one after the other, to determine the characteristics of 
  the unit’s fleshmetal guns when resolving those attacks.’
  Page 142 – Obliterators
  Remove ‘Daemon’ from the Faction keywords line.
  Add ‘Daemon’ to the keywords line.
  Page 146 – Chaos Predator, Damage table
  Change the top value under ‘Remaining W’ to read ‘6-11+’.
  Change the second value under ‘Remaining W’ to read ‘3-5’.
  Page 149 – Khorne Lord of Skulls
  Remove ‘Daemon’ from the Faction keywords line.
  Add ‘Daemon’ to the keywords line.
  Page 157 – Abilities, Legion Traits, rules text
  Change the first sentence to read:
  ‘If your army is Battle-forged, all Character, Infantry, Biker 
  and Helbrute units in Chaos Space Marines Detachments gain a 
  Legion Trait, so long as every unit in that Detachment is from the 
  same Legion.’
  Page 158 – Stratagems, Gifts of Chaos, rules text
  Add the following:
  ‘You can only use this Stratagem once per battle.’
  Page 158 – Stratagems, Chaos Boon, rules text
  Change the first sentence to read:
  ‘Use this Stratagem at the end of a Fight phase in which one 
  of your Heretic Astartes Characters (excluding Daemon 
  Characters) slays an enemy Character, Vehicle or Monster.’
  
  5
  WARHAMMER 40,000 – CODEX: CHAOS SPACE MARINES
  *Page 158 – Stratagems, Chaos Boon, Spawndom
  Change the third sentence to the following:
  ‘If you do so, set up the Chaos Spawn within 6" of the Character 
  and not within Engagement Range of any enemy units before 
  removing them as a casualty.’
  Page 159 – Stratagems, Tide of Traitors, rules text
  Add the following:
  ‘You can only use this Stratagem once per battle.’
  Page 159 – Stratagems, Killshot, rules text
  Change the second sentence to read: 
  ‘Add 1 to the wound rolls and damage for all of the Predators’ 
  attacks that target Monsters or Vehicles this phase.’
  Page 160 – Stratagems, Forward Operatives
  Change this Stratagem to read: 
  ‘Use this Stratagem during deployment, when you set up an 
  Alpha Legion Infantry unit from your army. At the start of the 
  first battle round but before the first turn begins, you can move 
  that unit up to 9". It cannot end this move within 9" of any enemy 
  models. If both players have units that can move before the first 
  turn begins, the player who is taking the first turn moves their 
  units first. Each unit can only be selected for this Stratagem once 
  per battle.’
  *Page 161 – Dark Hereticus Discipline, Warptime
  Change the second sentence to read:
  ‘If manifested, pick a Heretic Astartes unit (excluding Aircraft) 
  within 3" of the Psyker.’
  Page 161 – Dark Hereticus Discipline, Gift of Chaos, rules text
  Change the second sentence to read:
  ‘If manifested, select an enemy unit that is within 6" of the Psyker 
  and visible to him and roll a D6.’
  *Change the third sentence to read:
  ‘If a Character is destroyed by this power, you can add a Chaos 
  Spawn to your army within 6" of the Character and not within 
  Engagement Range of any enemy units before they are removed as 
  a casualty.’
  Page 161 – Mark of Tzeentch: Weaver of Fates
  Change the third sentence of rules text to read:
  ‘Until the start of your next Psychic phase, the invulnerable save 
  of that unit is improved by 1 (to a maximum of 3+).’
  Page 165 – Legion Warlord Traits, Word Bearers: The Voice 
  of Lorgar
  Change the rule to read: 
  ‘Increases the range of your Warlord’s aura abilities (e.g. Lord of 
  Chaos, Demagogue) by 3". Increase the range of any Prayers to the 
  Dark Gods chanted by your Warlord by 3".’
  
  6
  WARHAMMER 40,000 – CODEX: CHAOS SPACE MARINES
  WEAPON UPDATES
  RANGED WEAPONS 
  RANGE TYPE 
  S 
  AP D 
  ABILITIES
  Combi-flamer 
   Before selecting targets, select one or both of the profiles below to make attacks with. If you select both, then each time an attack is made 
  with this weapon this phase, subtract 1 from that attack’s hit roll. 
   
   
   
   
  - Boltgun 
  24" 
  Rapid Fire 1 
  4 
  0 
  1 
  -
  - Flamer 
  12" 
  Assault D6 
  4 
  0 
  1 
   Each time an attack is made with this weapon profile, that attack automatically hits 
  the target.
  Combi-melta 
   Before selecting targets, select one or both of the profiles below to make attacks with. If you select both, then each time an attack is made 
  with this weapon this phase, subtract 1 from that attack’s hit roll. 
   
   
   
   
  - Boltgun 
  24" 
  Rapid Fire 1 
  4 
  0 
  1 
  -
  - Meltagun 
  12" 
  Assault 1 
  8 
  -4 
  D6 
   Each time an attack made with this weapon profile targets a unit within half range, that 
  attack has a Damage characteristic of D6+2.
  Combi-plasma 
   Before selecting targets, select one or two of the profiles below to make attacks with (you can only select one of the plasma gun profiles). If 
  you select two, then each time an attack is made with this weapon this phase, subtract 1 from that attack’s hit roll. 
   
   
   
   
  - Boltgun 
  24" 
  Rapid Fire 1 
  4 
  0 
  1 
  -
  - Plasma gun (standard) 
  24" 
  Rapid Fire 1 
  7 
  -3 
  1 
  -
  - Plasma gun (supercharge) 
  24" 
  Rapid Fire 1 
  8 
  -3 
  2 
   If any unmodified hit rolls of 1 are made for attacks with this weapon profile, the bearer is 
  destroyed after shooting with this weapon.
  Demolisher cannon 
  24" 
  Heavy D6 
  10 
  -3 
  D6 
  Blast
  Flamer 
  12" 
  Assault D6 
  4 
  0 
  1 
  Each time an attack is made with this weapon, that attack automatically hits the target.
  Heavy bolter 
  36" 
  Heavy 3 
  5 
  -1 
  2 
  -
  Heavy flamer 
  12" 
  Heavy D6 
  5 
  -1 
  1 
  Each time an attack is made with this weapon, that attack automatically hits the target.
  Helbrute plasma cannon 
  36" 
  Heavy D3 
  8 
  -3 
  2 
   Blast. Each time an unmodified hit roll of 1 is made for an attack with this weapon, the 
  bearer suffers 1 mortal wound after shooting with this weapon.
  Kharn’s plasma pistol 
  12" 
  Pistol 1 
  8 
  -3 
  2 
   On an unmodified hit roll of 1, the bearer suffers 1 mortal wound after shooting with 
  this weapon.
  Meltagun 
  12" 
  Assault 1 
  8 
  -4 
  D6 
   Each time an attack made with this weapon targets a unit within half range, that attack has 
  a Damage characteristic of D6+2.
  Multi-melta 
  24" 
  Heavy 2 
  8 
  -4 
  D6 
   Each time an attack made with this weapon targets a unit within half range, that attack has 
  a Damage characteristic of D6+2.
  Plasma gun 
  Before selecting targets, select one of the profiles below to make attacks with. 
   
   
   
   
  - Standard 
  24" 
  Rapid Fire 1 
  7 
  -3 
  1 
  -
  - Supercharge 
  24" 
  Rapid Fire 1 
  8 
  -3 
  2 
   If any unmodified hit rolls of 1 are made for attacks with this weapon profile, the bearer is 
  destroyed after shooting with this weapon.
  Plasma pistol 
  Before selecting targets, select one of the profiles below to make attacks with. 
   
   
   
   
  - Standard 
  12" 
  Pistol 1 
  7 
  -3 
  1 
  -
  - Supercharge 
  12" 
  Pistol 1 
  8 
  -3 
  2 
   If any unmodified hit rolls of 1 are made for attacks with this weapon profile, the bearer is 
  destroyed after shooting with this weapon.
  Reaper autocannon 
  36" 
  Heavy 4 
  7 
  -2 
  1 
  -
  Twin heavy bolter 
  36" 
  Heavy 6 
  5 
  -1 
  2 
  -
  Twin heavy flamer 
  12" 
  Heavy 2D6 
  5 
  -1 
  1 
  Each time an attack is made with this weapon, that attack automatically hits the target.
  MELEE WEAPONS 
  RANGE TYPE 
  S 
  AP D 
  ABILITIES
  Astartes chainsword 
  Melee 
  Melee 
  User -1 
  1 
  Each time the bearer fights, it makes 1 additional attack with this weapon.
  Chainfist 
  Melee 
  Melee 
  x2 
  -4 
  D3 
   Each time an attack is made with this weapon, subtract 1 from that attack’s hit roll, and if 
  that attack is allocated to a Vehicle model, that attack has a Damage characteristic of 3.
  Force axe 
  Melee 
  Melee 
  +2 
  -2 
  D3 
  -
  Force stave 
  Melee 
  Melee 
  +3 
  -1 
  D3 
  -
  Force sword 
  Melee 
  Melee 
  +1 
  -3 
  D3 
  -
  Lightning claw 
  Melee 
  Melee 
  User -2 
  1 
   Each time the bearer fights, it makes 1 additional attack with this weapon. Each time an 
  attack is made with this weapon, you can re-roll the wound roll.
  Master-crafted power sword 
  Melee 
  Melee 
  +1 
  -3 
  2 
  -
  Power axe 
  Melee 
  Melee 
  +2 
  -2 
  1 
  -
  Power fist 
  Melee 
  Melee 
  x2 
  -3 
  2 
  Each time an attack is made with this weapon, subtract 1 from that attack’s hit roll.
  Power maul 
  Melee 
  Melee 
  +3 
  -1 
  1 
  -
  Power sword 
  Melee 
  Melee 
  +1 
  -3 
  1 
  -
  Thunder hammer 
  Melee 
  Melee 
  x2 
  -2 
  3 
  Each time an attack is made with this weapon, subtract 1 from that attack’s hit roll.
  
SOURCE: textdata/thevault/Warhammer/40k/9th Edition - Warhammer 40K/Errata & FAQs/2. Codex/CODEX - CHAOS SPACE MARINES v1-1.pdf