A model attacking with this weapon never receives +1 Attack for fighting with two Melee weapons (see page 177).
If a model has the Shred special rule, or is attacking with a Melee weapon that has the Shred rule, it re-rolls failed To Wound rolls in close combat. Similarly, if a model makes a Shooting Attack with a weapon that has the Shred rule, it re-rolls its failed To Wound rolls.
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+1
Melee, Two-handed, Shred
