5-star Sword
Key of Khaj-Nisut — Best Characters in 2026
Massive HP% stat and an EM team buff — the only sword that meaningfully scales HP support kits.
Weapon Type
Sword
Rarity
5-star
Best On
3 characters
Alternatives
7 similar
Best Characters for Key of Khaj-Nisut in 2026
How to get the most out of it
The EM team buff scales with the wielder's HP, so reaching the HP threshold matters more than anything else on this weapon. Best used on Nilou, where both halves of the passive matter.
Alternatives & Similar Swords
Mistsplitter Reforged · 5-star Freedom-Sworn · 5-star Splendor of Tranquil Waters · 5-star Sacrificial Sword · 4-star Favonius Sword · 4-star Iron Sting · 4-star (craftable) Amenoma Kageuchi · 4-star (craftable)
Frequently Asked Questions
Who should use Key of Khaj-Nisut?
It is best on Nilou, Layla, Kirara. Massive HP% stat and an EM team buff — the only sword that meaningfully scales HP support kits.
Is Key of Khaj-Nisut worth pulling?
Only if the characters above are core to your account. The gap between a signature weapon and a refined 4-star alternative is usually 10-20%, which is less valuable than an additional character.
What are the alternatives to Key of Khaj-Nisut?
Other strong sword options include Mistsplitter Reforged, Freedom-Sworn, Splendor of Tranquil Waters, Sacrificial Sword.