Level 1: Mount/Dismount - The Witch-King can mount or dismount his black steed to trample his enemies. Left click to activate. Level 1: Harbinger of Winter - Despite not revealing himself as one of the Nazguls, the menacing Aura of the Witch-King fills those around him with terror. All enemies nearby will passively lose 20% armor and damage. The active effect of this ability is a small snowstorm which doubles the passive effect for a short time. Activate with the left click. /Passive and Active ability./ Left click on a hero of Angmar.