Key of Khaj-Nisut

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.

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At a glance

Key of Khaj-Nisut is a 5-star Sword released in Version 3.1. At Level 90, it has 542 Base ATK and 66.2% HP. Its Sunken Song of the Sands passive is documented from R1 to R5.

Rarity: 5 stars
Type: Sword
Maximum level: 90
Release version: 3.1

Lunaris data: version 7.1.0 (latest version reported by the source at import: 7.1.0), generated on September 22, 2026.This is the catalog generation date. Build guides separately state when their recommendations were checked.

Progression

Stats at level 90

Level

190

Base ATK: 542
HP: 66.2%

Passive effect

Sunken Song of the Sands

Refinement

HP increased by 20%. 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% 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% of the equipping character's max HP for 20s.

Progression

Ascension materials

Total ascension cost. Level-up EXP and Mora, and extra copies for refinement, are not included.

Mora for ascensions: 225,000

Faded Red Satin
× 15
Trimmed Red Silk
× 23
Rich Red Brocade
× 27
Damaged Prism
× 23
Turbid Prism
× 27
Radiant Prism
× 41
Copper Talisman of the Forest Dew
× 5
Iron Talisman of the Forest Dew
× 14
Silver Talisman of the Forest Dew
× 14
Golden Talisman of the Forest Dew
× 6

Names source: Lunaris

Progression

Stats by level

Stored values at the main progression milestones from level 1 to 90.

Level	Base ATK	HP
1	44	14.4%
20	110	25.4%
40	210	37.1%
50	275	42.9%
60	341	48.7%
70	408	54.5%
80	475	60.3%
90	542	66.2%

Sunken Song of the Sands

R1–R5 refinement effects

Every refinement is visible together for direct comparison.

R1

R2

HP increased by 25%. When an Elemental Skill hits opponents, you gain the Grand Hymn effect for 20s. This effect increases the equipping character's Elemental Mastery by 0.15% 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 0.25% of the equipping character's max HP for 20s.

R3

HP increased by 30%. When an Elemental Skill hits opponents, you gain the Grand Hymn effect for 20s. This effect increases the equipping character's Elemental Mastery by 0.18% 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 0.3% of the equipping character's max HP for 20s.

R4

HP increased by 35%. When an Elemental Skill hits opponents, you gain the Grand Hymn effect for 20s. This effect increases the equipping character's Elemental Mastery by 0.21% 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 0.35% of the equipping character's max HP for 20s.

R5

HP increased by 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 0.24% 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 0.4% of the equipping character's max HP for 20s.

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