The adamantium skull plate adds +1 Toughness. When Ghazghkull charges into combat he gets an extra free head butt attack against one model in base-to-base contact with him. The head butt is resolved as an attack made with an Initiative of 4, roll to hit as normal for a close combat blow and if a hit is scored roll to wound with Ghazghkull's Strength of 5. A model that suffers a wound from the head butt is stunned for the rest of the turn and may not attack in close combat.
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