Enemy units near the Tower are weakened

Dominated by Shadow, the glades of Southern Mirkwood have a dark and terrifying air. The Free Peoples who venture into these forested paths find themselves feeling tense, unnaturally weary in heart and limb and their senses dulled. The servants of Sauron use this blight for their own advantage, for it invigorates their want for destruction. Particularly near Dol Guldur, the trees rot and wither, the soil blackens and the native creatures come under the Shadow. Not even the Wood-elves of Thranduil dare to come close to the Hill of Black Magic unless in sufficient numbers.

Power of the Necromancer (Passive)

Improves the damage and durability of the Nine

Of old the halls, chambers, spires and dungeons of Dol Guldur were the Dark Lordís prime domain. From this horrid lair and under the guise of the Necromancer, Sauron exerted his sorcery over a majority of Greenwood and Wilderland. So powerful was the Dark Lordís influence that even with the assault of the White Council and his departure to Mordor, the lands that were once under the Necromancerís sway still lingers with his dread. The Nazgul are distinctly effected by this force, the Nineís presence and might growing with each moment they near their masterís old northern stronghold.