Flagellant

Frenzied troops gain +1 A and Immunity (Psychology).

Berserk Rage
A unit that includes one or more Frenzied models can only choose Hold or Stand & Shoot as a charge reaction.

If, during the Charge sub-phase, a unit that includes one or more Frenzied models could declare a charge, then it must do so unless a LD test is passed. If the LD test is failed, the Frenzied unit must declare a charge against the nearest viable enemy.

A unit that includes one or more Frenzied models cannot choose to restrain pursuit if it beats a foe in close combat. It will either pursue (if the enemy has fled) or overrun (if the enemy was wiped out in combat). Note that if the enemy is wiped out in combat but the Frenzied unit did not charge that turn (or if the combat was the result of a pursuit or overrun charge in the same turn), then the Frenzied unit will reform as normal as it has no other choice of action.

Losing Frenzy
Frenzy can be lost. Models retain their Frenzy for the entire game unless beaten in combat.

Unbrekable Models have Immunity (Psychology) and passes Break tests automatically. Characters that are Unbreakable may only join units that are also Unbreakable, and characters that are not Unbreakable are not permitted to join units that are Unbreakable (even if a character was to become temporarily Unbreakable for some reason).

If a unit of Flagellants is in base contact with an enemy unit at the start of any Close Combat phase, the Flagellants may immediately sacrifice D3 Wounds worth of models. Casualties inflicted in this way are 'martyrs' and they do not count towards combat resolution.

If at least one model is removed as a martyr, the remaining models in the unit immediately gain one of the effects from the Martyr Table until the end of the current phase. The exact effect that applies will depend on the number of models removed as martyrs.

In addition, friendly units within 6" of Flagellants suffer -1 to their LD, except other Flagellants, Warrior Priests, Arch Lectors and Sisters of Sigmar.