You’ll use a variety of resources in Destiny 2 whenever you craft and reshape a weapon you craft at Relic. Relic is a powerful tool that allows you to create weapons from the Templates you have collected or reshape any weapon you have built. One resource you will use at the Ruins is called Resonance Alloy. This guide covers how to get Resonant Alloys in Destiny 2 and how to best farm.
The Resonant Alloy will be the main resource you use to craft your weapons at the Ruins. Resonant alloys are what you use whenever crafting a frame for your original weapon. As you work your way through The Witch Queen expansion, you’ll receive a small amount for completing the Deepsight Resonance weapon and unlocking the Resonsan Element within it during the Shaping: Extraction quest.
Then the key way to earn more Resonance Alloys is by breaking legendary weapons. Legendary weapons that you don’t use or plan to add to your arsenal will need to be split up to make sure you don’t waste any space in your inventory. Whenever you do this, you’ll get Resonant Alloys, which you can take back to the Ruins to start crafting new weapons for your arsenal. You can also use Resonant Alloys to reshape the weapon perks of an already crafted weapon. The more legendary weapons you earn, the more Resonant Alloys you collect.
https://www.gamepur.com/guides/how-to-get-resonant-alloy-in-destiny-2 How to get Resonant Alloys in Destiny 2