The Hunter Relic was Not Active on 9-17-2023 when I finished the "The Arrival" Quest..
There I have the material that came from Sathuuns Ship!! ;-(

How To Unlock Relics In Season Of Plunder Destiny 2 - Where To Place Relics In HELM Season 18 = Link 1

HOW TO UNLOCK RELIC (WEAPON CRAFTING) - DESTINY 2   Link 1

Weapon Crafting Explained! In-Depth Guide! (Elements, Patterns, & Shaping) - Destiny 2 Witch Queen  Link 1

NOTE: There is ONE PURCHASE ASCENDANT ALLOY PER A WEEK from RAHOOL for 400 Weapon Shards...