Fiend Saws skills and upgrade unlocks
Fiend Saws has 7 listed skills and upgrade unlocks in the game’s text, including Charged Onslaught, Corrosion Burst Lv. 1 / Lv. 2 / Lv. 3, Charged Frenzy, Corrosive Severance, Fiend-Aura Erosion.
| Skill | Unlock tier | What it does |
|---|---|---|
| Charged Onslaught | Level 5 | During a combo, hold Light Attack to charge, then unleash a rapid series of crossing slashes that infuse Fiend-Aura into the wounds, transforming [Fiend-Aura Erosion] on the enemy into [Azure Erosion], which depletes more Sha-Chi when it erupts. |
| Corrosion Burst Lv. 1 / Lv. 2 / Lv. 3 | Level 10 | Slightly increases / Moderately increases / Greatly increases damage dealt by [Fiend-Aura Erosion] and its altered effects when they erupt. |
| Charged Frenzy | Level 15 | During a combo, hold Heavy Attack to charge, then unleash a rapid series of sweeping, spinning Sha-Chi slashes that drive Fiend-Aura deep into the bone, transforming [Fiend-Aura Erosion] on the enemy into [Crimson Erosion], which deals increased damage when it erupts. |
| Corrosive Severance | Level 25 | Press Execution (R1) to trigger an early eruption of [Fiend-Aura Erosion] or its altered effects on all enemies. If the eruption Guard Breaks an enemy, it greatly extends their Guard-Broken duration. |
| Fiend-Aura Erosion | Special Trait | Each hit builds up [Fiend-Aura Erosion] on the enemy. When the [Fiend-Aura Erosion] Gauge is full, the accumulated fiend-aura erupts, eroding the enemy's HP. |
| Endless Fiend Form | Soul Tempering | After Fiend-Aura Erosion erupts on an enemy, all attacks against them become unblockable for several seconds. |
| Fiend Form | Weapon Skill (L2) | L2 Consumes 1to enter [Fiend Form] for several seconds. While active, all attacks are unblockable and deal increased damage to Guard-Broken enemies. While in [Fiend Form], press L2 again to perform a [powerful follow-up attack] without consuming and exit [Fiend Form]. |
How to get Fiend Saws and Soul Tempering
Primary weapon · Weapon_023
Fiend Saws
In the launch game’s weapon list, Fiend Saws is described as: “A pair of curved, serrated blades modeled after Jade Dancer's leg blades.” You Soul Temper Fiend Saws at the forge using Heel Reinforcement Part.
| Weapon name | Fiend Saws 妖锯 |
|---|---|
| Category | Primary weapon (carried in one of two Primary Weapon slots; upgraded to level 30) |
| Wielder & origin | A pair of curved, serrated blades modeled after Jade Dancer's leg blades. · Jade Dancer fight page · Use It Against Them quest guide |
| Soul Tempering item | Heel Reinforcement Part — Used to Soul Temper the Fiend Saws. |
| Level 1–30 upgrades | Upgrades in three tiers (Lv. 1–10 with Twinned Metal & Solvent, Lv. 11–20 with Polished Twinned Metal & Concentrated Solvent, Lv. 21–30 with Flawless Twinned Metal, Universal Solvent & Blackstone). A Reforging Talisman resets the level to 1 and refunds 100% of materials. Counts toward A Tempered Ten & Overwhelming Force. |
| Weapon achievement | Delayed Blast — Detonate Fiend Corrosion with Fiend Saws. |
Heel Reinforcement Part item lore: “It began when Xiaokui noticed the wear on Jade Dancer's heels and gave her parts to reinforce them. As those parts wore out with use, Jade Dancer kept them instead of throwing them away. The habit of using such fittings, however, has quietly stayed with her ever since.”
In-game description and combat role
“A pair of unique blades once wielded by Jade Dancer with her legs. Soul now wields them by hand, but their deep-seated Fiend-Aura remains undiminished.”
In-game weapon text for Fiend Saws, Phantom Blade Zero launch build
Fiend Saws is a primary weapon in the launch build of Phantom Blade Zero. Jade Dancer’s leg-saws, now held in Soul’s hands; they carry Fiend-Aura.