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Instead, keep allocating damage to another model in the target unit until either all the damage has been allocated or the target unit is destroyed. Unlike damage inflicted by normal attacks, excess damage from mortal wounds is not lost. Do not make a wound roll or saving throw (including invulnerable saves) against a mortal wound – just allocate it as you would any other attack and inflict damage to a model in the target unit. Each mortal wound inflicts 1 point of damage on the target unit, and they are always applied one at a time.
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Some attacks inflict mortal wounds – these are so powerful that no armour or force field can withstand their fury.
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