Onimusha Way of the Sword Equipment Upgrade Guide: All Weapon, Armor, and Oni Gauntlet Enhancements

There is something incredibly satisfying about a good upgrade system in a samurai action game. Give me a sword, a dangerous enemy, a pile of resources, and a reason to keep exploring every corner of the map, and I’m probably going to check every chest before moving on.

That is exactly why the equipment progression in Onimusha: Way of the Sword caught my attention. At first glance, the system looks fairly straightforward: collect souls, find materials, visit a Spirit Mirror, and make Musashi stronger. But once you start looking at how the katana, Clothing, Oni Gauntlet, Oni Armaments, Charms, and combat skills interact, there is considerably more depth here than the basic upgrade menus suggest.

The biggest thing to understand is that not every upgrade has the same value at every point in the game. Some improvements make Musashi hit harder, while others dramatically improve the way you generate and spend resources during combat.

For me, the most important lesson is simple: don’t treat every upgrade as equally important. Build the tools that make the entire combat loop work better.

How the Upgrade System Works in Onimusha: Way of the Sword

Musashi’s progression is built around two main types of resources: souls and physical crafting materials. Souls come directly from the Genma you fight, while materials are generally discovered around Kyoto, including treasure chests and side content.

The soul system is especially important because different soul colors serve different purposes.

Red Souls are the ones you’ll constantly be thinking about when upgrading your equipment. Blue Souls, meanwhile, are tied directly to your supernatural arsenal, while Yellow Souls provide emergency healing during combat.

This creates a nice little gameplay loop. You fight, absorb souls, improve Musashi, and then use those improvements to fight more efficiently.

And honestly, that’s the kind of progression system I prefer over simply finding a bigger number on a sword every few hours.

Spirit Mirrors Are Your Real Upgrade Headquarters

If you’re playing through Onimusha: Way of the Sword and ignoring Spirit Mirrors, you’re making life unnecessarily difficult.

These locations function as much more than simple checkpoints. They are where you save, fast travel, change appearances, and, most importantly, reinforce your equipment. The upgrade system is divided into three major categories: Sword, Clothing, and Gauntlet.

One thing I really like about this structure is that you aren’t forced into some complicated class system where upgrading one item permanently ruins another build.

Each equipment category has its own progression path, so there is a strong argument for upgrading everything as it becomes available.

That said, if I had to establish priorities, I’d still put weapon upgrades first, followed closely by Oni Gauntlet improvements.

1. Upgrade the Katana First

Musashi’s relationship with his sword is refreshingly simple. Rather than constantly switching between an inventory full of conventional weapons, Way of the Sword focuses on mastery of a single katana throughout the campaign.

That makes sword reinforcement incredibly important.

The Forge system improves the katana’s basic damage using Red Souls and materials such as iron sands. Stronger forge levels don’t just increase the damage of normal attacks; they also improve Musashi’s ability to pressure enemy stamina and posture.

This is one of those upgrades that doesn’t necessarily feel spectacular immediately, but you notice the difference when fighting tougher Genma.

A stronger sword means:

• Faster enemy stagger and posture damage.
• Better performance from light attacks.
• More impact from heavy attacks.
• More reliable damage against tougher enemies.

My advice: don’t fall into the trap of saving your Red Souls forever because you are waiting for some “perfect” upgrade. The katana is your foundation, and keeping its damage relevant should be one of your first priorities.

Don’t Confuse Sword Skins With Upgrades

The game also includes Sword Images, but these are purely cosmetic. They change how the katana looks without affecting its combat statistics.

So if you find a cool-looking blade appearance, equip it because you like it — not because you think it makes Musashi stronger.

2. Clothing Is More Important Than It Looks

The armor system in Way of the Sword is deliberately streamlined. Instead of dealing with complicated armor weight, individual armor pieces, and endless stat comparisons, Musashi upgrades his Clothing, including robes, coats, and traveling gear.

At first, I can see players overlooking this category because sword damage feels more exciting.

That would be a mistake.

Upgrading Clothing improves maximum health and stamina, and stamina is especially valuable because it influences defensive movement, reflex dodges, sustained defensive actions, and exploration.

Later upgrades also improve protection against negative status effects.

In other words, Clothing isn’t about making Musashi flashy.

It’s about giving you more room for mistakes.

And against difficult enemies, that extra health or stamina can be the difference between surviving an encounter and having to restart it.

3. The Oni Gauntlet Is Your Secret Weapon

This is probably the upgrade category I would pay the most attention to after the katana.

The Oni Gauntlet isn’t simply another piece of equipment. It controls the supernatural side of Musashi’s combat system, and upgrading it changes how quickly and safely you can generate the resources needed for Oni abilities.

The first major improvement is Soul Absorb Speed and Range.

Normally, collecting souls requires you to remain relatively close to defeated enemies. That’s fine when the battlefield is quiet. It’s much less comfortable when three Genma are still trying to murder you.

Increasing the Gauntlet’s range and absorption speed makes the entire process smoother. You spend less time standing around collecting resources and more time actually fighting.

The other major improvement is Oni Gauge capacity.

A larger gauge means more stored supernatural energy, allowing you to use Oni Armaments repeatedly without constantly interrupting the rhythm of a boss fight to collect more Blue Souls.

For me, this is one of the best examples of an upgrade that improves the feel of the game, not just the numbers.

4. Don’t Sleep on the Six Oni Armaments

The Oni Armaments are where the combat system starts getting really interesting.

Musashi may rely on one physical katana, but the Oni Gauntlet gives him access to six powerful supernatural abilities. They consume Blue Souls and can provide damage, crowd control, healing opportunities, or ways to break enemy defenses.

Here is how I would think about them:

Earth Shakers is the defensive answer. It can break through enemy guards and create openings when normal attacks aren’t getting anywhere.

Two Celestials is the survival option. It makes attacks generate Yellow Souls, turning aggressive play into a source of healing.

Wind Whipper is excellent when you’re surrounded. Its broad attacks make it the obvious crowd-control choice.

Firebird Flute gives you a ranged elemental option and can inflict fire damage over time.

Then there’s The Flashing Void.

This is the one I’d actively tell completionists to watch out for. It’s hidden away from the main path and can be missed because of the Malice barriers surrounding its location. The reward is a rapid multi-hit attack designed for enormous single-target burst damage.

Finally, The Torrential Gale adds another interesting environmental trick. Its tornadoes can interact with fire lanterns or explosive barrels and become fiery tornadoes.

That kind of environmental interaction is exactly the sort of thing I want from a supernatural weapon system.

5. Charms Can Quietly Change Your Build

Charms aren’t upgraded at Spirit Mirrors. Instead, you discover them while exploring Kyoto, and they provide smaller but meaningful gameplay bonuses.

One particularly interesting example is the Kubi Akari Charm, which is available through save data from the official pre-release demo and improves Musashi’s ability to detect hidden items.

Other charms can improve things such as:

• Stamina recovery.
• Duration of status effects applied to enemies.
• Oni Armament damage.
• Physical damage protection.

I wouldn’t call these game-changing individually, but together they give you another layer of customization.

The best charm will depend heavily on how you actually play. An aggressive player may get more value from stronger Oni Armaments, while someone who relies heavily on defensive movement may prefer stamina recovery.

6. The Blazing State Is Where the Combat System Really Clicks

This is one of the upgrades I would absolutely recommend unlocking rather than rushing past it.

The Blazing State rewards players for learning the game’s defensive mechanics. Successfully parrying attacks fills a Blaze Gauge, and once that gauge is full, Musashi enters a powered-up state where his katana becomes surrounded by blue flame.

The important part isn’t just the damage increase.

While Blazing State is active, enemies drop significantly more Blue Souls, which means you can recharge your Oni Armaments more quickly.

That’s a fantastic feedback loop:

Parry → Build Blaze → Enter Blazing State → Deal More Damage → Collect More Blue Souls → Use More Oni Armaments.

This is the sort of system that rewards players for actually mastering the combat rather than simply upgrading their stats.

7. Learn Issen, Chain Issen, and Reflex Dodges

If you’re serious about mastering Onimusha: Way of the Sword, raw equipment levels won’t be enough.

The skill system has several mechanics that reward precise timing.

A perfect parry can trigger Issen, a devastating counterattack capable of instantly cutting through standard Genma. Once you become comfortable chaining these attacks, Chain Issen can turn a group encounter into a spectacular cleanup.

Then there are Reflex Dodges, which are particularly useful against unblockable grab attacks. A perfectly timed dodge creates an opportunity for a powerful counterattack.

This is where I think the game has the potential to separate casual players from people who really fall in love with its combat.

A high-level Musashi shouldn’t simply be a character with maxed-out equipment.

He should be a character the player knows how to control.

8. What Carries Over Into New Game Plus?

New Game Plus is another area where you need to understand the rules before starting a second playthrough.

Several important progression elements remain available, including:

• Unlocked skill tree nodes.
• Sword arts and advanced combat techniques.
• Discovered accessories and charms.
• Defensive relics.
• Certain rare consumables.

However, some of the most important upgrade progress is reset.

That means you shouldn’t enter NG+ assuming your entire character will simply remain fully upgraded.

The interesting part is that your knowledge and combat skills carry over in a different sense. Even when the game takes away certain progression levels, you still have the experience you’ve gained from the first run.

And honestly, that’s probably the way I’d want NG+ to work.

My Upgrade Priority for Onimusha: Way of the Sword

If I were starting a fresh playthrough today, my priorities would be pretty straightforward.

First: Katana Forge. Keep Musashi’s basic damage competitive.

Second: Oni Gauntlet absorption range and speed. Being able to collect souls without constantly putting yourself in danger is incredibly valuable.

Third: Clothing. Health and stamina are too useful to ignore, especially once encounters become more demanding.

Fourth: Combat skills. Learn parries, Issen, Reflex Dodges, and the Blazing State instead of relying entirely on equipment.

Fifth: Explore for Charms and Oni Armaments. Especially keep an eye out for the missable Flashing Void.

The biggest mistake would be treating this like a conventional RPG where bigger numbers automatically equal better play.

The real strength of Onimusha: Way of the Sword comes from combining equipment progression with combat mastery. A stronger katana helps, but a player who can consistently parry, trigger Issen, exploit Blazing State, manage Blue Souls, and use the right Oni Armament at the right moment will get much more out of Musashi’s arsenal.

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Final Thoughts

What I like most about this upgrade system is that it doesn’t completely separate progression from combat. Your gear matters, but the best upgrades actually encourage you to engage with the mechanics more deeply.

The katana gives you the reliable foundation. Clothing gives you survivability. The Oni Gauntlet makes the soul economy more efficient. Oni Armaments give you answers to specific combat problems, while Charms allow you to fine-tune your preferred style.

Then the skill tree takes everything a step further.

Once you start combining a properly upgraded sword with efficient soul absorption, Blazing State, Issen counters, Reflex Dodges, and the right Oni Armament, Musashi stops feeling like a character who is simply becoming stronger.

He starts feeling like a swordsman you have personally mastered.

And that’s ultimately how I’d approach Onimusha: Way of the Sword: upgrade the katana, improve the Gauntlet, explore Kyoto instead of rushing through it, hunt down the hidden supernatural weapons, and most importantly, learn the timing-based combat.

Because the best upgrade isn’t always another level.

Sometimes it’s simply getting better with the sword.

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