A model with this special rule, and all models in any friendly unit with the Legiones Astartes (Emperor's Children) special rule and at least one model withing 6" of a model with this special rule, gains +1 to the score used to calculate the winner of a combat during the Assault phase. The effects of this special rule do not stack, and any given unit can only be affected by a single instance of this special rule - however, the effects of this special rule do stack with the effects of Fulgrim's Sire of the Emperor's Children special rule.
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