File:Shock.svg Shock is a combat debuff which reduces the Damage Reduction (DR) of the target by a flat 2% each time they are hit. The attack can stack up to 10 times, resulting in up to a 20% reduction of the target's DR.

This page is up to date (v1.3).

As with Affliction, the only way to reduce the chance of being shocked is to reduce the enemy's chance to hit as much as possible.

Sources

The effect can be inflicted by any of the monsters within the   Lightning Region dungeon: