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Hello.

I am slightly confused with the new FAQ ruling under battle brothers which stats that

BATTLE BROTHERS
All of the units in each Detachment in your Battle-forged army must have at least one Faction keyword in common. In addition, this keyword cannot
be Chaos, Imperium, Aeldari, Ynnari or Tyranids, unless the Detachment in question is a Fortification Network. This has no effect on your
Army Faction.

The rule itself is fine but I was planning on doing a Nurgle themed army with a mix of death guard and chaos marines. So I have a few questions

-Would this kind of list be legal?
-Do I need to have them as 2 separate detachments (1 DeathG and 1 Chaos Marines? or is the keyword "Nurgle" enough for 1 detachment?)
-Which Codex do I use for things like relics / psychic powers / traits? Is it both?


I understand that some HQs can only buff ie Deathguard units so would be a con to a list like this.

The reason I ask all this is because I use battlescribe and when trying to design a list, it keeps asking me to pick a legion on the chaos part, and deathguard has its complete own area so is not listed. So can other legions be Nurgle?

Thanks in advance for your help.

The faq applies to detachments, not army. So you can still have a CHAOS army.

You can have a NURGLE detachment or a HERETIC ASTARTES detachment in your army.

But.

It's still better to split your army up into different faction detachments to get faction benefits and stratagems. But mixed faction detachments can be decent in some circumstances.

You can do all this in Battlescribe easily enough once you get the hang of nesting detachments (I summon BCB with his gif)


Automatically Appended Next Post:
Some of your other questions:free relics warlord traits and tactical objectives depend on your warlords faction and nothing else. Psychic powers you can take will be on the datasheet of the psyker.

Other legions can be Nurgle too. Only Thousand Sons world eaters and emperors children cant.

I hope this helps.

Oops, instead of Vanguard it should read as Spearhead

Not the best example.. The battalion is valid if the oblits are marked nurgle.

Technically not legal because <MARK OF CHAOS: NURGLE > and <ALLEGIANCE: NURGLE > are not the same keyword and can't be used to tie a detachment together as per the Designers Commentary FAQ. https://www.dakkadakka.com/dakkaforum/posts/list/755232.page#9937087

 BaconCatBug wrote:
Technically not legal because <MARK OF CHAOS: NURGLE > and <ALLEGIANCE: NURGLE > are not the same keyword and can't be used to tie a detachment together as per the Designers Commentary FAQ. https://www.dakkadakka.com/dakkaforum/posts/list/755232.page#9937087

Technically the designers commentary say no such thing. But we already had a thread on that, so ..ignore.

Thanks for your help everyone.

I am a bit confused with your example Vector Strike. The non valid part IMO seems legal if they all use "nurgle".

 Carl4t7 wrote:
Thanks for your help everyone.

I am a bit confused with your example Vector Strike. The non valid part IMO seems legal if they all use "nurgle".

Yes but it used to be legal with slaanesh oblits. Now they Have to be nurgle.
It mainly rules out using Renegades & heretic cheap detachment fillers I've found.

Ok I get this now. But it’s brought a new question.

If I use the keyword “heretics”

Can abaddon be in an alpha legion list. Providing I use the keyword heretics?

I’m asking this as BattleScribe isnt allowing me to but I can’t understand why not?

 Carl4t7 wrote:
Ok I get this now. But it’s brought a new question.

If I use the keyword “heretics”

Can abaddon be in an alpha legion list. Providing I use the keyword heretics?

I’m asking this as BattleScribe isnt allowing me to but I can’t understand why not?

Yes you can.

Battlescribe will allow you to do this either by nesting a black legion detachment in an alpha legion one or by selecting one detachment with no legion (But this will require you to note down which legion you want each unit to be yourself.)

Captyn_Bob wrote:

 Carl4t7 wrote:
Ok I get this now. But it’s brought a new question.

If I use the keyword “heretics”

Can abaddon be in an alpha legion list. Providing I use the keyword heretics?

I’m asking this as BattleScribe isnt allowing me to but I can’t understand why not?

Yes you can.

Battlescribe will allow you to do this either by nesting a black legion detachment in an alpha legion one or by selecting one detachment with no legion (But this will require you to note down which legion you want each unit to be yourself.)

Wont they lose their Legion trait etc anyway?

Yeah any mixed legion detachment Will, but the legion keyword still matters for stratagems. (Boop)

Captyn_Bob wrote:
Yeah any mixed legion detachment Will, but the legion keyword still matters for stratagems. (Assuming you take another detachment to unlock them)

You don't need an Alpha Legion detachment to unlock Alpha Legion stratagems, you only need a Heretic Astartes detachment. The stratagem only works on Alpha Legion units though.

A detachment with Black Legion and Alpha Legion will still unlock all stratagems. Its still a CSM detachment.

You only miss out on legion traits.

ok so I have now built just a nurgle only list with a single detachment for now. with the deathguard DP and typhus heading this list. I am presuming this is valid.

Does this mean I use the stratagems for deathguard AND chaos marines? as I have chaos marine units in the list. Infact I have daemon nurgles in there too.

 Carl4t7 wrote:
ok so I have now built just a nurgle only list with a single detachment for now. with the deathguard DP and typhus heading this list. I am presuming this is valid.

Does this mean I use the stratagems for deathguard AND chaos marines? as I have chaos marine units in the list. Infact I have daemon nurgles in there too.

You must have an entire detachment (no auxiliary detachment) entirely drawn from a codex faction (So Legion or deathguard ) to unlock the corresponding stratagems for your whole army.

Captyn_Bob wrote:

 Carl4t7 wrote:
ok so I have now built just a nurgle only list with a single detachment for now. with the deathguard DP and typhus heading this list. I am presuming this is valid.

Does this mean I use the stratagems for deathguard AND chaos marines? as I have chaos marine units in the list. Infact I have daemon nurgles in there too.

You must have an entire detachment (no auxiliary detachment) entirely drawn from a codex faction (So Legion or deathguard ) to unlock the corresponding stratagems for your whole army.

So have Typhus, plague bearers, nurgle havocs etc in one detachment. means no stratagems at all?

 Carl4t7 wrote:

Captyn_Bob wrote:

 Carl4t7 wrote:
ok so I have now built just a nurgle only list with a single detachment for now. with the deathguard DP and typhus heading this list. I am presuming this is valid.

Does this mean I use the stratagems for deathguard AND chaos marines? as I have chaos marine units in the list. Infact I have daemon nurgles in there too.

You must have an entire detachment (no auxiliary detachment) entirely drawn from a codex faction (So Legion or deathguard ) to unlock the corresponding stratagems for your whole army.

So have Typhus, plague bearers, nurgle havocs etc in one detachment. means no stratagems at all?

Correct. The rules for unlocking stratagems is found on the first page of stratagems in their respective codexes. You'll also find the definitions for a Death Guard Detachment and Chaos Space Marines detachment in the books. The detachment you described is neither a Death Guard detachment nor a Chaos Space Marines detachment.