Nilou's signature weapon in Genshin Impact, the Key of Khaj-Nisut sword, is going to come out during the second phase of Genshin Impact 3.1. It is a powerful weapon for sword users whose abilities scale based on HP.

In this article, Gurugamer is going to showcase everything you need to know about the Key of Khaj-Nisut, including its stats and users.

Key of Khaj-Nisut stats & skill

The Key of Khaj-Nisut is the only weapon so far in Genshin with HP% sub stat, on top of the 20% bonus MAX HP from its skill. At the max level, it gives the user an extra 86.15% MAX HP.

Skill: HP increased by 20/5/30/35/40%. When an Elemental Skill hits opponents, you gain the Grand Hymn effect for 20s. This effect increases the equipping character’s Elemental Mastery by 0.12/0.15/0.18/0.21/0.24% of their Max HP. This effect can trigger once every 0.3s. Max 3 stacks. When this effect gains 3 stacks, or when the third stack’s duration is refreshed, the Elemental Mastery of all nearby party members will be increased by 0.2/0.25/0.3/0.35/0.4% of the equipping character’s max HP for 20s.

Should you pull on the 3.1 weapon banner?

If you are planning on getting Nilou, going for the 3.1 weapon banner is a good idea. The Key of Khaj-Nisut is pretty much designed for her - it is a crazy stat stick that gives massive HP and EM bonuses.

32236 16655160433807 1920
One of a paired set of scepters fashioned from obsidian. They say that this can be used as a key to open the gate to a paradise that lies at the end of the ocean of sand.

Primordial Jade Cutter is also great on Nilou or any other DPS sword user.

Upgrade materials

20→40Copper Talisman of the Forest Dew x5Damaged Prism x5Faded Red Satin x3
40→50Iron Talisman of the Forest Dew x5Damaged Prism x18Faded Red SatinFaded Red Satin x12
50→60Iron Talisman of the Forest Dew x9Turbid Prism x9Trimmed Red Silk x9
60→70Silver Talisman of the Forest Dew x5Turbid Prism x18Trimmed Red Silk x14
70→80Silver Talisman of the Forest Dew x9Radiant Prism x14Rich Red Brocade x9
80→90Golden Talisman of the Forest Dew x6Radiant Prism x27Rich Red Brocade x18

Which are the best users of Key of Khaj-Nisut?

Maxresdefault
Nilou should be able to deal some crazy amount of damage using this weapon.

Nilou

It is the signature weapon for Nilou who focuses on Bloom combo (Elemental Mastery) and scale on HP (MAX HP substat).

Ayato

Ayato's Skill gives his normal attacks bonus damage based on his MAX HP. Key of Khaj-Nisut would increase it significantly.

Layla

The new character in 3.2, Layla, has her whole skill set based around max HP. With the Key of Khaj-Nisut, she would be able to shield very efficiently and deal much more damage.

Kuki Shinobu

Kuki's heal and damage are based on her own HP - the more HP you have, the better. It is unlikely that Kuki would ever get this weapon if you have Nilou.

>>> Read more: Genshin Impact: 3 Reasons To Pull For Nilou (And 3 Reasons To Skip Her Banner)