The Dark Iron Forge is the Angmar building where the Witch-King prepares his siege weapons for battle and lays dark enchantments on weapons and armor through his cunning sorcery.
This building has no upgrades. This means that this building can not gain any sort of permanent boost from upgrades found in either its palantir or from other units/heroes. If this is not the case, fill in the section following the policy.
The Dark Iron Forge produces siege units and unit upgrades.
Dark Iron Mail - Increases the hitpoints of the battalion significantly and also increases the resistance to ranged damage.
Ice Arrows - This upgrade significantly increases the arrow damage dealt by this battalion once purchased.
Ice Shot - Increases the damage done by the catapult and disables attacked buildings for a short time. Fortresses, Walls and Expansions are not affected.
Tribute to the Iron Crown: This building can be upgraded by collecting tribute from the Witch-King's vassals. Orc Camps, Rhudaur Villages, Barrows, and Outposts regularly spawn tribute carts that can be sent into this building to upgrade it and generate resources. Note: more than one tribute cart is needed to go from level 2 to level 3. For each level gained, this structure gains +1500 HP.