You see The Stormcaller, a sparkling two handed sword surrounded by vibrant static.  You must be level 600 or higher.

This is a two-handed weapon that causes 83 to 167 points of damage.  This weapon has a range of 3 combat squares.  This item weighs 33.0 stones.  This is in very good condition (100%).

Str +1, Atk +1, Armor Piercing +10

Elementalism SDM +100%

5% chance to cast 'Lightning Bolt' on hit