Characters that are part of a Detachment or Formation presented in this book must always issue and accept a challenge whenever possible. If you have several models in a combat with a special rule to this effect, you can choose which model issues or accepts the challenge.
All Wolf Guard Battle Leaders, Wolf Guard Pack Leaders, Wolf Guard Terminator Leaders and Thunderwolf Cavalry Pack Leaders that are part of a Detachment or Formation presented in this book have the Preferred Enemy (characters) special rule when fighting in a challenge.
During the turn in which they arrive from Reserves, the ranged weapons of all Infantry models from this Formation have the Twin-linked special rule.
When rolling for Reserves, make a single Reserve Roll to see when this Formation arrives. On a successful roll, all units in this Formation will arrive. These units must deploy by Deep Strike.
The following models have +1 WS on their profile when chosen as part of this Detachment: - Wolf Guard - Wolf Guard Pack Leader - Wolf Guard Terminator - Wolf Guard Terminator Leader - Thunderwolf Cavalry - Thunderwolf Cavalry Pack Leader
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.