This Ruleshammer article will cover the quirks and oddities to be found in Codex Adepta Sororitas! You can also find answers to many more questions in the Ruleshammer Compendium!
Defenders of Faith
How many shots does this stratagem actually provide? Lets check the rule first.
Instead of following the normal rules for Rapid Fire weapons, models in this unit shooting Rapid Fire Bolt weapons make double the number of normal attacks.
So the key thing here is that “instead of following” text, so it’s not double what ever attacks you’d normally make in a given situation it’s just double the number of attacks those weapons have listed. The Rapid Fire rules no long apply. So for a Rapid 2 weapon it’s not 4 shots at full range and 8 at half range because the half range bonus from Rapid Fire doesn’t apply. It is 4 shots regardless of the range.
Paragons (or “nundams” as Greg continually insists I call them) are a brand new unit for Sisters of Battle but as has been covered extensively they’ve debuted with two issues in their rules and costs. First of all their current listed cost in the codex is 240 points per model. This is pretty obviously ridiculous for a T5 4W 2+ model, and most players are going to be using that 240 as the intended cost of the whole unit of 3.
The other issue is with their damage reduction rule.
Each time an attack is allocated to a model in this unit, subtract 1 from the Damage Characteristic for that attack.
whilst not broken in an “this in unclear” way, rules-as-written this has no lower limit. As such, that means it will reduce the damage on incoming attacks with a dama1 Damage weapons to 0 damage. Damage as a characteristic unlike some others does not have a core rule limit on how low it can be reduce to, maybe because there are weapons with a damage characteristic of “-“. With Ruleshammer I really do like to stick to RAW as often as I can, but I think I can safely say that most players will be running that these suits aren’t immune to 1 Damage weapons, probably as many players who aren’t going to insist on paying 720 points for the unit.
Celestine and her Retinue
Celestine and her Geminae Superia are a single unit again, one that can be healed a few times over the game so I thought covering how that interacts with other rules was worth covering again.
Do I need to spend Reinforcement Points to return these models to the battlefield?
The short answer to this is “no.” Returning Geminae Superia to the unit does not require any Reinforcement Points.
Some rules allow you to add new units to your army during the battle, or else replace units that have been destroyed. If you are playing a game that uses a points limit, then you must set aside some of your points in order to use these rules; these are your Reinforcement points. Each time a unit is added to your army during the battle, subtract the points of that unit from your pool of Reinforcement points. If there are not enough points in your pool to pay for the unit, you must either decrease the size of that unit (but no smaller than its minimum unit size) or the number of weapon options the unit has until you do have enough points to pay for it, otherwise it cannot be added to your army.
Sometimes a rule will allow you to add extra models to an existing unit from your army during the battle. Unless otherwise started, adding these models does not cost any Reinforcement points.
When do these models count as Destroyed for the purposes of the Assassination Secondary Objective?
The updated Secondary in GT2021 Assassination does mean this unit is worth 9 Victory Points on its own, however it will only be worth a maximum of 9 VP during a game, rather than giving you 3 VP each time a Geminae is killed.
If this unit is below its Starting Strength, 1 GEMINAE SUPERIA model is returned to the unit with their full wounds remaining.’
and the new Assassination Secondary Objective in the 2021 Grand Tournament Missions pack:
Score 3 Victory Points at the end of the battle for each enemy Character that is destroyed. If the enemy Warlord was destroyed during the battle, gain 1 additional victory point.
As with Assassinate in the 2020 pack, this checks at the end of the game for destroyed units, so it really only matters which models from the unit have been destroyed at the end of the game.
Note: There’s perhaps an angle here for “well the rule doesn’t say they aren’t destroyed” which I guess is technically true but also seems a bit of a reach. They’re back on the board and can be destroyed again by future attacks. It’s not as tight as it could be but I don’t think this argument would be in good faith,
Taking a Diagolus Warlord with <ORDER> Traits
The Diagolus do not have an <ORDER> keyword so what happens when they are given an <ORDER> Warlord Trait? Ignoring the slightly odd command structure that this represents, let’s look at the rule:
When you have determined a Warlord Trait for an ADEPTA SORORITAS CHARACTER model, replace all instances of the <ORDER> keyword in their Warlord Trait (if any) with the name of the Order Militant that your model is drawn from. If your WARLORD has the SANCTIFIED keyword, replace all instances of the keyword on any Warlord Traits they have (if any) with ADEPTA SORORITAS.
Because Diagolus do have the SANCTIFIED keyword they replace all instances of <ORDER> with just ADEPTA SORORITAS. I’m not sure if this allows for any game braking combinations but does mean you can make some of the traits army wide for a mixed <ORDER> army.
Can you use these twice in the same turn? The short answer is that it’s not 100% clear.
Once per battle, in your Shooting phase, after this unit has shot, one model in this unit can immediately shoot with one of its ranged weapons again. If this unit has two armorium cherubs, it can use this ability twice per battle.
Update: Since publishing I’ve looked at this rule again and after some really helpful reader feedback; I’ve been convinced that being able to use both in a single turn is potentially allowed. I’ve left my orginal answer below because I think what I said about the trigger point is still valid, “after this unit has shot” does happen once however this point can trigger BOTH cherubs. We then end up with two models in the unit that need to shoot again immediately, and the core rules explain how to resolve two rules happening at the same time in the sequencing section. The player who’s turn it is decides the order, in this case which model is resolved first. I think you’d need to decide to activate both cherubs at this point though, not activate one and then decide to activate the second after shooting. Also it’s not clear if both activations can target the same model. So I still think an FAQ would be helpful to clear that up.
Original Answer: Personally I lean toward once per turn, purely because the trigger happens once in a turn; “after this unit has shot”… you then shoot with another model again. This hinges somewhate on “after this unit has shot, one model in this unit can immediately” implying “the next thing you could do imediately is this” and once you move on from that moment it stops being an option. The “in your Shooting Phase” does limit this rules timing at least, rather than inadvertently being any moment after it has shot in the game.