Shadowfury

Shadowfury is a Shadow-based direct damage GTAoE that stuns targets for a short duration. It can only be acquired by investing 41 in the Destruction tree.

Tips and tactics

 * As it does not trigger the global cooldown, it gives you 1.5 sec of free time. This time frame can be used to bring off a Howl of Terror.
 * Although extremely mana inefficient for a single target, Shadowfury can be used for kiting.
 * For groups the efficiency is comparable to Blizzard.