Spirit of War is the new Haunting Spirit.
Like Haunting Spirits - they can be used to make 553 iLevel epics [legs and belts.] However, unlike Haunting Spirits the Spirits of War are used as a "boost".
This is basically how it works:
Thomas has Leatherworking. Thomas has found the new Leatherworking pattern. The new Leatherworking pattern = turn 2 Exotic Hides into a Hardened Exotic Hide. This is a daily cooldown. Each time you make a Hardened Exotic Hide you learn either: a 5.4 553 iLevel pattern, or you learn a 476 iLevel blue PvP pattern. It takes 28 Hardened Exotic Hides to make 553 iLevel legs, and 21 for a belt. It will take thomas 28 days to make a pair of leggings [28 daily cooldowns of x2 Exotic Hides] or 21 days to make a belt. However... 1 Spirit of War essentially reduces the cooldown by one day, by giving you an extra Hardened Exotic Hide.
As you can see, NO spirits are even required/neccessary to even make your own crafted items - they merely speed up the process.
So let's get down to business. If you are in the middle of making a crafted, see that there are some Spirits of War in the bank, and you feel you're either the person who needs the upgrade the most or simply feel its best in slot: post here.
Crafted-batch #1: October 2nd - Plate: Obsolus legs [or] Lucreciae belt [TBA]
¬ Leather/Mail: Euina belt [TBA]
¬ Cloth: Suppression belt/legs [TBA]
Note: by TBA [To Be Announced] what I -REALLY- mean is: what will drop on reset-day? If they get a belt/pair of legs after having some crafted for them - that's a huge waste. Crafted[s] will be made after the raid every reset day [if possible.]