The primary function of the Narzissenkreuz sword is for puzzle-solving and is typically used for Travelers (except Hydro). On DPS characters requiring attack stats like Ayaka or Keqing, it can serve as a temporary weapon, but there are much better options available. If you already have enough Ousia / Pneuma attributes, there's no rush. Here, Mytour will guide Genshin Impact players on obtaining the Narzissenkreuz sword, as well as how to customize its attributes and refine it.
See more: Genshin Impact: How to Build a Furina Team, Who Are Good Teammates?
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How to Obtain Narzissenkreuz Sword and Customize Attributes
Just like the prestigious Snow-Tombed Starsilver claymore introduced in Genshin Impact 1.2, the free 4-star weapon Narzissenkreuz Sword is a reward from a very lengthy questline, starting from patch 4.0 and concluding in patch 4.2. Upon completing all the following tasks, you will obtain it:
- Ann of Narzissenkreuz
- Unfinished Tale
- Ancient Colors
- The Final Matter
- Watercolor Trail
- Uncompleted Comedy
- The Original Truth
- Narcissus Trace: Requires completing Chapter 4 - The Tail of the Ship Wave

To convert the Ousia / Pneuma attributes of this weapon, you need to go to the small water fountain in Annapausis, where Lyris once sat.
Narzissenkreuz Sword Refinement Materials
The materials to refine this new 4-star weapon in Genshin Impact 4.2 are the 'Sacred Chalice' shells, but the method to obtain them is a bit tricky. Firstly, you need to find Dry Seashells from the following locations and quests:
Shell 1: Inside the room at the Natural Philosophy Academy.

Shell 2: Inside the treasure chest in the Narzissenkreuz Guild.

Shell 3: Inside the Bravais Library cave, southeast of the Academic Assembly Hall (area from patch 4.1).

Shell 4:
After completing the Erinnyes Wild Spirit quest, head into the cave northeast of Loch Urania to find the treasure chest containing the fourth shell you need.

After finding a shell and completing the Tail of the Ship Wave quest above, you can take it to the small water fountain in Annapausis and exchange it for the Sacred Chalice.

Conclusion
Although obtaining and refining the Narzissenkreuz sword takes a considerable amount of time, it doesn't offer anything particularly special apart from its visually appealing appearance and the ability to possess both Ousia / Pneuma attributes. This effect is only activated when wielded by Genshin Impact characters using swords without inherent Ousia / Pneuma attributes. So, take your time with the quests and enjoy the game!
See more: Genshin Impact: Top limited 5-star characters, easiest to build in the game (Part 1)