| Type | Swords |
| Rarity |  |
| How to get | from Chen the Sharp |
| Base Attack | 39 |
| Substats | Elemental Mastery |
| Passive | Overloaded |
| Description | Upon causing an Overloaded, Superconduct, Electro-Charged, or an Electro-infused Swirl reaction, ATK is increased by 20/25/30/35/40% for 12 s. |
In Game Description
A perfectly ordinary iron sword, just slightly darker than most.
How to Get Dark Iron Sword?
Obtainable from from Chen the Sharp, street food vendor located next to Wanmin Restaurant in Liyue Harbor, Liyue.
Upgrade Materials
Here’s all material used to upgrade Dark Iron Sword:
| Level |  Mora | Ascension Material | Material 1 | Material 2 |
| Level 20 | 5.000 |  x2 |  x2 |  x1 |
| Level 40 | 10000 |  x2 | x8 | x5 |
| Level 50 | 15.000 | x4 |  x4 |  x4 |
| Level 60 | 20.000 |  x2 | x8 | x6 |
| Level 70 | 25.000 | x4 |  x6 |  x4 |
| Level 80 | 30.000 |  x3 | x12 | x8 |
Special Ability Based on Refinement
Just like any other weapon, Dark Iron Sword also have special effect. The higher rank of weapon refinement, the effect will become stronger with highest number at refinement rank 5.
| Refinement Rank | Description |
| Refinement 1 | Upon causing an Overloaded, Superconduct, Electro-Charged, or an Electro-infused Swirl reaction, ATK is increased by 20% for 12 s. |
| Refinement 2 | Upon causing an Overloaded, Superconduct, Electro-Charged, or an Electro-infused Swirl reaction, ATK is increased by 25% for 12 s. |
| Refinement 3 | Upon causing an Overloaded, Superconduct, Electro-Charged, or an Electro-infused Swirl reaction, ATK is increased by 30% for 12 s. |
| Refinement 4 | Upon causing an Overloaded, Superconduct, Electro-Charged, or an Electro-infused Swirl reaction, ATK is increased by 35% for 12 s. |
| Refinement 5 | Upon causing an Overloaded, Superconduct, Electro-Charged, or an Electro-infused Swirl reaction, ATK is increased by 40% for 12 s. |