Shadowfire Isparian Crossbow

From the Shadowfire Stone (Quest) introduced in A Change in Tactics.

Shadowfire Isparian Crossbow
Value: 10,000 1,400 Burden Units
A Perfect Isparian Crossbow, infused with the power of the Shadowfire Stone. Special Properties: Attuned, Bonded, Ivoryable, Unenchantable, Crushing Blow, Biting Strike, Shadow Slayer Damage Bonus: 0 (?) Elemental Damage Bonus: 12 (?), Fire Damage Modifer: +155% Speed: Very Slow (90) () Range: 80 yds. Uses Crossbow Skill Uses quarrels as ammunition. Bonus to Melee Defense: +% (+%) This item can only be wielded by <Player>. Your base Crossbow skill must be at least 360 to wield this item. Casts the following spells: Infected Caress, Cragstone's Will, Atlan's Alacrity Activation Requirements: Crossbow: 360 Spellcraft: 300 Mana: 5000 Mana Cost: 1 point per 30 seconds. Spell Descriptions: Atlan's Alacrity (Improves a weapon's speed by 70 points.) Infected Caress (Increases a weapon's damage value by 22 points.) Cragstone's Will (Increases the Melee Defense skill modifier of a weapon or magic caster by 17%.)