If I understood this correctly:
Part One:
Requirements
You will be able to augment your weapon
s by meeting
any one of the following conditions:
You have acquired
any of the following key items from an area of Dynamis-Divergence corresponding to your
weapon:
Elvaan Mask of Light / Galka Mask of Light / Tarutaru Mask of Light / Mithra Mask of Light
Deposit 10,000 job points with Oboro while fulfilling
the following conditions:
You have upgraded at least one relic, mythic, empyrean, ergon, or aeonic weapon to its maximum potential.
You are a job master for the job that will equip that weapon.
*You can deposit up to 700 job points per week (Earth time). Furthermore, you can also donate job points from other jobs you have mastered.
It only has to be done once it seems [per type].
-30M HP to Wave 3 Boss to Turn Dark into Light.
Or
-10K JP
Part Two:
REMA Upgrades:
1-Speak with Oboro, and ask about “Upgrading my weapon even further.”
2-Trade the weapon you wish to augment to Oboro along with
one of the required items [S. Astral Detritus / M. Astral Detritus] to receive
upgrade points. Accumulate
enough points, and your augment rank will increase, further upgrading your weapon.
Divergence Weapons/Necks:
1-Enter any of the areas for Dynamis-Divergence.
2-Trade the [Weapon/Neck] you wish to augment to the NPC Oboro.
Choose from among one of three routes.
(*There is only one option for accessories.)
3-Gain points via one of the following two methods:
A-Trade the equipment [Weapon/Neck] you wish to augment along with
one of the required items [Heroism Crystal / Heroism Aggregate] to Oboro.
Or
B-Defeat foes in Dynamis-Divergence while equipped with the gear you wish to augment.[Same as old Dyna]
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From that it seems you can have up to three upgrades simultaneously: [REMA, Divergence Weapon, JSE Neck]
-Also [S. Astral Detritus and M. Astral Detritus] will drop from Omen while [Heroism Crystal / Heroism Aggregate] will drop from Dyna.
-Consequently both [M. Astral Detritus and Heroism Aggregate] will have much higher value than the other two in terms of points.