Crimson Death

All models in this Formation have a 4+ cover save. If a model from this formation chooses to Jink, it can re-roll failed cover saves until the start of its next turn.

This rule is often presented as Preferred Enemy (X) where X identifies a specific type of foe. If the special rule does not specify a type of foe, then everyone is a Preferred Enemy of the unit. A unit that contains at least one model with this special rule re-rolls failed To Hit and To Wound rolls of 1 if attacking its Preferred Enemy. This applies both to shooting and close combat attacks.