"All of creation cares not whether you live or die."
The Mask of Shadows gives War the ability to glimpse into a parallel dimension - The Shadow Realm, allowing him to see things that would otherwise be unnoticed or inaccessible. The mask appears on War's face when equipped and the eyes will glow orange when used. this gives the world an orangish tint. At some points in the game you will find an object in the real world which is completely transparent but is outlined in black, upon entering the Shadow Realm, these objects reveal themselves and can now be interacted with. Examples of objects only usable with the Mask of Shadows are chests, Shadowflight boosters, Abyssal Chain points, or anvils with the Armageddon Blade pieces. Typically, to get to the area with an Armageddon Blade shard, you have to use the Mask of Shadows to see the pieces of the environment needed.
The Tormented Gates can give War the temporary ability to see into the Shadow Realm before he gets the mask.
Locations to use the mask inEdit
These are various puzzles that can be solved, and items that can be found using the Mask of Shadows.
While the Mask of Shadows is not counted as a part of the Abyssal Armor, pictures of War often feature him with the mask in addition to the armor. It does rather complete the ensemble.