Berserk Fugue (All-Consuming)

Each time a model with this Obsession makes a melee attack, if that model's unit made a charge move, was charged or performed a Heroic Intervention this turn, an unmodified hit roll of 6 scores 1 additional hit. Each time a model with this Obsession would lose a wound as a result of a mortal wound, roll one D6: on a 5+, that wound is not lost.