You can find a black and gold nucleus by exploring the world, as was previously described. Additionally, you can get it from the daily bounties.
What if, though, you have already thoroughly explored Aesperia? Fear not; we shall have a new supply of the black and gold nucleus with the release of Vera.
Pulling for the Gacha uses black and gold nucleus. The black nucleus is utilized for weapon materials. It occasionally has a chance of yielding an SSR weapon.
In contrast, the gold nucleus is used to generate the normal simulacrums. The Ruin Stones, one of the recently introduced puzzles, can be found in Vera.
Solving the Ruin Stones Puzzle
There will be stones with marks on them occasionally as you explore Vera. They have a white diamond icon on the mini-map, where you may locate them.
You must observe the benefits from the proper vantage point to reap them.