MODIFIERS
Modifiers are rules that change a numerical value from one value to
another. This can include the result of a dice roll, the characteristics
of a model, and more. This section details how to apply modifiers in
your games. In all cases:
1. All modifiers are cumulative.
2. If a rule instructs you to change or replace one characteristic with
a specified value, change the relevant characteristic to the new
value before applying any modifiers that apply from other rules (if
any) to the new value.
3. You must then apply division modifiers before applying
multiplication modifiers, before applying addition and then
subtraction modifiers.
4. Round any fractions up after applying all modifiers.
Example 1: A model is under the effects of two abilities,
one instructing the controlling player to ‘double the Attacks
characteristic of its melee weapons’ and the other saying ‘add 1 to
the Attacks characteristic of its melee weapons.’ These two modifiers
(x2 and +1) are cumulative and applied concurrently. If that model
had a melee weapon with an unmodified Attacks characteristic of 3,
then after the modifiers are applied, this would become 7 (3x2=6,
then 6+1=7).
Example 2a: An Ancient is leading a unit of Intercessors (Objective
Control = 2). The unit is within Engagement Range of a unit of
Rippers whose Chitinous Horrors ability states ‘While an enemy unit
is within Engagement Range of this unit, halve the Objective Control
characteristic of models in that enemy unit’. The Ancient has the
Astartes Banner ability, which states ‘While this model is leading
a unit, add 1 to the Objective Control characteristic of models in
that unit’. Division modifiers are applied before addition modifiers,
meaning the final modified OC of each Intercessor model in that unit
is 2 (2/2=1, then 1+1=2).
Example 2b: The same Intercessor unit from Example 2a becomes
Battle-shocked, changing the OC characteristic of its models
to 0. This happens before the Chitinous Horrors and Astartes
Banner modifiers are applied, meaning the final, modified OC
of each Intercessor model in that unit is 1 (2 --> 0, then 0/2 = 0,
then 0+1=1).