Step 0: Activate the quest line
As with the 2.0 relic quest, you have to do an initial quest to start the chain. This only needs to be done once. "An Unexpected Proposal" > Idyllshire 5,5 > Rowena. This then sends Gerolt and Ardashir to Azys Lla, where they'll be for you to actually do the quest chain.
Step 1: Get an umbral and astral nodule for the relic base
This requires you to meet a vendor named Syndony on the second floor of the House of Splendors in Revenant's Toll. She requires one of 2 things to give you the two nodules:
1) A fully completed zeta relic -
THIS DESTROYS THE RELIC. You can now buy a replica of the Zeta stage from the NPC Drake at Hyrstmill in North Shroud (X:30 Y:20).
2) 18 luminous crystals - 3 from each of the new heavensward zones, namely:
- Luminous Ice Crystal, from the Coerthas Western Highlands
- Luminous Wind Crystal, from the Sea of Clouds
- Luminous Fire Crystal, from Azys Lla
- Luminous Earth Crysta, from the Dravanian Forelands
- Luminous Lightning Crystal, from the Churning Mists
- Luminous Water Crystal, from the Dravanian Hinterlands
Once you have these you can hand them into Ardashir to create the relic base.
Step 2: Awaken the relic base
You need to do the following dungeons (in order?) with the base relic weapon equipped:
- Snowcloak
- Sastasha (hard)
- Qarn (hard)
- Keeper of the Lake
- The Wanderer's Palace (hard)
- Amdapor Keep (hard)
- Dusk Vigil
- Sohm Al
- The Aery
- The Vault
It has been confirmed that you
can unsync the dungeons for these runs.
Step 3: Gather materials for the actual relic
The awakened relic is too weak for it's current weapon and needs a new one, which Gerolt can craft for you with 4 new items:
- Enchanted Rubber
- Fast-drying Carboncoat
- Fast-acting Allagan Catalyst
- Divine Water
You can get these from Cristiana at the House of Splendors in Mor Dhona. She will barter the items in exchange for other items.
From the quest text itself:
The goods requested by Cristiana can be obtained through various means including dungeons, beast tribe quests, and crafting. Speak with other players and share information to discover how to find them!
Once you have all 4, you can turn those into Gerolt to get the completed relic.