Hammer of Thunderbolts
From AmtWiki
Hammer of Thunderbolts
A Throwing Weapon By: Flotsam of Norgham (Silverwater) Only usable by Barbarians. Hits by this throwing weapon do 2 pts of damage to armor and destroy shields. When twirled overhead (on lanyard), wielder is immune to Lightning Bolt, and can redirect any Call Lightning cast on a target within 50' to another target in the same range of the weilder's choice.