What are the requirements now? Is there an updated guide. Do you still have to get friendly/honor with EVERY single zone? Any help is appreciated 
They made it account wide in 10.0.7 so if you did it once you unlock it on all characters but the requirements haven’t changed as far as I’m aware.
“The Balance of Power questline artifact appearance rewards are now account-wide. After unlocking the base appearance, the criteria for additional color variants (such as the Glory of the Legion Hero and Unleashed Monstrosities achievements) may be completed on any character to earn the appearances. For example, completing the requirements for certain color variants on your hunter, will also be unlocked on your priest that’s on the same account.”
thats wonderful!