SRD:Axe of the Dwarvish Lords
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Axe of the Dwarvish Lords: This is a +6 keen throwing goblinoid bane dwarven waraxe. Any dwarf who holds it doubles the range of his or her darkvision. Any nondwarf who grasps the Axe takes 2 points of temporary Charisma damage; these points cannot be healed or restored in any way while the Axe is held. The current owner of the Axe gains a +10 bonus on Craft (armorsmithing, blacksmithing, gemcutting, stonemasonry, and weaponsmithing) checks. The wielder of the Axe can summon an elder earth elemental (as summon monster IX; duration 20 rounds) once per week.