Greetings.
I have some additional information on enhancements to relic weapons, mythic weapons, and empyrean weapons.
The other day we announced that there would be two stages for enhancing these weapons via Trial of the Magians. During this week’s test server update we will be implementing these weapons as well adding the associated trials.
The items required to enhance the weapons are as listed below; however, the amount required is still being tested and adjusted so note that what is listed below is only temporary.
Also, along with the addition of the trials, we will be increasing the amount of zeni you receive when trading soulplates to the ZNM NPC Sanraku.
※There have been no changes to the previously announced adjustment plans. Gildrein wrote:
Stage 1
Possible upgrades will include damage, delay, and weapon skill damage along with other attributes.
The planned difficulty level for the corresponding Magian upgrade trials will be such that a majority of players with the appropriate level 95 equipment will likely be able to complete them.
*This content is not yet available on the test server.
 
Stage 2
Possible upgrades will include special animations along with "Afterglow" effects that grant status benefits to party members.
The corresponding Magian trials will be exceedingly difficult to complete, such that only a select number of PCs will be able to upgrade weapons to this stage. *Gjallarhorn and Daurdabla may not be imbued with Afterglow effects.
Stage 1 
※The number of items required for upgrade is temporary. Weapon Classification Trial Information
Relic Weapons Trial: Retrieve a set quantity of the assigned item.
Objective: 20 Umbral Marrow
Mythic Weapons Trial: Retrieve a set quantity of the assigned item.
Objective: 10 Mulcibar’s Scoria
Verethragna/Almace/Farsha/Redemption/Rhongomiant/Masamune/Gandiva/Daurdabla Trial: Retrieve a set quantity of the assigned item.
Objective: 60 Riftcinder
Twashtar/Caladbolg/Ukonvasara/Kannagi/Gambanteinn/Hvergelmir/Armageddon/Ochain Trial: Retrieve a set quantity of the assigned item.
Objective: 60 Riftdross
Stage 2 
※The number of items required for upgrade is temporary. Weapon Classification Trial Information
Relic Weapons Trial: Retrieve a set quantity of the assigned item.
Objective: 1,000 Umbral Marrow
Mythic Weapons Trial: Retrieve a set quantity of the assigned item.
Objective: 500 Mulcibar’s Scoria
Verethragna/Almace/Farsha/Redemption/Rhongomiant/Masamune/Gandiva/Daurdabla Trial: Retrieve a set quantity of the assigned item.
Objective: 3,000 Riftcinder
Twashtar/Caladbolg/Ukonvasara/Kannagi/Gambanteinn/Hvergelmir/Armageddon/Ochain Trial: Retrieve a set quantity of the assigned item.
Objective: 3,000 Riftdross