The Chirugeon

Some warriors are so blood-frenzied that they can ignore injuries that would incapacitate even a battle-hardened Space Marine. If a model with this ability loses a wound, roll a dice. On a 1, 2 or 3, take the wound as normal, removing the model if it loses its final wound. On a 4, 5 or 6, the injury is ignored and the model continues fighting. This ability cannot be used against weapons that inflict Instant Death (those with a Strength double or more the model's Toughness) or against close combat weapons that allow no Armour Save (such as power fists, power swords, Dreadnought close combat weapons, rending attacks that roll a 6 to hit, etc).