COMBAT
Onimusha: Way of the Sword Weapons and Oni Armaments
Find Onimusha weapons and Firebird Flute, understand the Oni Power Gauge, compare Armament roles and separate sword appearances from combat upgrades.
Quick answer
The confirmed combat-tool structure is one always-equipped Sword/Katana, one independent Oni Bow, and six gauge-based Oni Armaments: The Two Celestials, Wind-Whipper, Earth-Shakers, Firebird Flute, The Flashing Void and Still Water. “Oni Armory: 7” means the Bow plus those six; “Wielder of Oni Armaments” uses the six-item gauge set.
Last checked: September 8, 2026. Upgrade costs and carryover notes use launch-period evidence with no identified build.
Confirmed weapons, locations and roles
| Tool | Class and acquisition | Story status | Core use |
|---|---|---|---|
| Sword / Katana | Base equipped melee weapon | Base | Swordplay, Parry, Deflect, Issen and Break Issen |
| Oni Bow | Oni Refuge main path | Story required | Range, headshots and environmental triggers |
| The Two Celestials | Dual blades; Kiyomizu-dera story-path chest | Story path | Close multihit and soul-oriented pressure |
| Wind-Whipper | Rotating dual blades; The Oni's Apprentice story gift | Story required | Surrounding area-of-effect pressure |
| Earth-Shakers | Heavy pair; Underground Laboratory L4 chest | Optional chest | Charge, Break and armor pressure |
| Firebird Flute | Fire projectile; Gojo Street Rift-site chest after Shadows Fall | Optional chest | Ranged fire and multi-target ignite pressure |
| The Flashing Void | Burst lunge; Mount Oe Castle Courtyard cave chest | Optional, late-game | Single-target burst and charged slowdown |
| Still Water | Sword-enhancement state; northeast Swamp of Arashiyama chest | Optional, late-game | Katana pressure, Purple Souls and Golden Wave |
Still Water is a main-sword enhancement state, not a permanent replacement moveset. The Oni Bow is part of the seven-item collectible check but remains separate from the six Oni Power Gauge Armaments.
Low-miss collection route
Where is Firebird Flute?
Look for the chest at the former Rift location from Shadows Fall, south of the Gojo Street – East Spirit Shrine. This location is documented in the PowerPyx Armaments route. Firebird Flute is an optional chest pickup, so reaching the next story mission does not mean you already collected it. Check your Armament inventory before leaving the area.
What uses the Oni Power Gauge?
The six combat Armaments listed above use the Oni Power Gauge. The Oni Bow is listed separately, and a sword appearance such as Whittled Oar is cosmetic. If you are checking the Oni Armory trophy, count the Bow plus the six Armaments; if you are choosing a gauge-based combat tool, compare the six Armament rows. See the souls guide for the related soul systems.
- Follow the story for the Oni Bow, The Two Celestials and Wind-Whipper.
- Check the Underground Laboratory L4, Gojo Street Rift site, Mount Oe Castle Courtyard cave and northeast Swamp of Arashiyama for the four optional chests.
- Before entering The Clash at Rendaino, verify the Bow plus all six Armaments and keep a manual save.
The four optional chests can be passed on the first visit. Evidence supports cleanup before the PNR and Continue after completion; it does not establish Chapter Select.
Choose an Armament by situation
| Player goal | Suggested tool | Mechanic basis | Limitation |
|---|---|---|---|
| Surrounding groups | Wind-Whipper | Surrounding AoE | Not an absolute damage rank |
| Break or armor pressure | Earth-Shakers | Charge and Break focus | Charge can expose Musashi |
| Multi-target fire / ignite | Firebird Flute | Ranged fire pressure | No universal status formula |
| Single-target direct pressure | The Flashing Void | Burst lunge and charged slowdown | No comparable DPS test |
| Soul-oriented close pressure | The Two Celestials | Multihit and soul role | Resource and upgrade state matter |
| Sustained sword pressure | Still Water | Purple Souls and Golden Wave | Not a second permanent sword moveset |
| Remote triggers / headshots | Oni Bow | Ranged utility | Damage and ammo values unavailable |
These are mechanism-based suggestions, not a universal tier list. Enemy, distance, resource and upgrade state change the result.
Oni Armament upgrade nodes
| Armament | Node 1 | Node 2 | Node 3 |
|---|---|---|---|
| The Two Celestials | Combo Strength — 2 Oni Stones | Power — after Portal 1; 4,500 Red Souls | Combo Strength+ — after Portal 2; 3 Oni Stones |
| Wind-Whipper | Power/Duration — after Portal 1; 2 Oni Stones | Power — after Portal 2; 5,500 Red Souls | Range — after Portal 3; 3 Oni Stones |
| Earth-Shakers | Charge Level — after Portal 1; 2 Oni Stones | Power — after Portal 2; 5,500 Red Souls | Charge Time — after Portal 3; 3 Oni Stones |
| Firebird Flute | Charged Shot — after acquisition; 3 Oni Stones | Power — after acquisition; 5,500 Red Souls | Projectiles — after Portal 3; 3 Oni Stones |
| The Flashing Void | Break Issen — after Portal 3; 3 Oni Stones | Power — after Portal 3; 6,500 Red Souls | Break Issen Combo — after Portal 3; 3 Oni Stones |
| Still Water | Golden Wave Gauge — after acquisition; 3 Oni Stones | Golden Wave Power — after acquisition; 6,500 Red Souls | Duration — after acquisition; 3 Oni Stones |
Bow and Sword upgrades
| Oni Bow node | Unlock gate | Cost |
|---|---|---|
| Oni Bow Power 1 | During The Oni's Apprentice | 3,500 Red Souls |
| Ultimate Charged Attack | After Oni Portal 1 | 2 Power Stones |
| Charge Time | After Oni Portal 2 | 5,500 Red Souls |
| Arrow Duration | After Oni Portal 3 | 3 Power Stones |
| Oni Bow Power 2 | After Oni Portal 3 | 6,500 Red Souls |
The Sword uses five Proficiency tiers. The detailed launch guide begins Proficiency 1 at level 1, then uses Whetstones, Iron, Tempered Iron and Tamahagane through its sublevels. Unlock costs recorded for Proficiencies 2–5 are, respectively: 1 Iron + 1 Tempered Iron + 2 Tamahagane; 2 Iron + 2 Tempered Iron + 3 Tamahagane; 2 Iron + 2 Tempered Iron + 4 Tamahagane; and 2 Whetstones + 2 Iron + 2 Tempered Iron + 1 Tamahagane.
These costs are partly single-source launch data and must be rechecked after balance patches. Refund or reset behavior was not found; do not assume an investment is reversible.
Weapons in New Game Plus
IGN narration says the six Armaments carry into Carnage NG+, while the Oni Bow must be reacquired through the story. The opening UI did not independently prove that every Armament is selectable immediately. Keep this as partial carryover evidence and use the New Game Plus guide for reset boundaries.
Edition swords and cosmetic appearances
Sealed Curse, White Lion, Bamboo & Panda, Whittled Oar, Raizan and Enryuu are verified Sword Appearances; Crimson Lotus is a Gauntlet Appearance. Official product information says these do not change combat performance, so none adds to the weapon count.
To claim Whittled Oar or find the Change Appearance option, follow the outfits and sword appearances guide. It covers cosmetic ownership and the Spirit Mirror separately from this page's combat upgrades.
IGN only confirms a new sword skin after Carnage. “Bishamon Sword” and a possible Issen effect come from one community lead and remain unconfirmed; they are excluded from the confirmed list.
Frequently asked questions
Why do guides say six or seven Oni Armaments?
Six is the gauge-based combat set. Seven is the Oni Armory collectible set: Oni Bow plus those six.
Are any weapons missable?
The Bow and Wind-Whipper are story acquisitions. Four chest Armaments can be passed initially, with evidence for pre-PNR and Continue cleanup.
Are Deluxe swords unique combat weapons?
No. Verified named Edition items are appearances with no combat-performance change.
Is Bishamon Sword confirmed?
No. The name and claimed effect remain a community lead without official or second UI confirmation.