When not channeling War's attack, it will remain without the energy that surrounds it.
If not used after activation, the energy will fade out after a few seconds.
Noticed after Specters of the Rail U2, War will glow after landing a kill for a few seconds.
The energy "spark" given off by the center piece of the blade will vary in color from your primary weapon's energy color.
The blade's energy color has 2 energy colors. The primary can be changed from the blade's appearance menu whereas the second energy color can be changed from the attachments menu.
Despite its immense size, especially with its channeling effects active, this weapon's reach is no larger than that of the Galatine.
In the Second Dream quest, War was not only the sword that the Stalker used, but also housed the consciousness of the SentientHunhow. The War would be shattered in two during the climax of the quest, creating the Broken War sword, which is simply the broken off piece re-purposed as a weapon.
This weapon, along with the Broken War is the first Sentient weapon available to players.