Power Jewel vs Soul Upgrades in Onimusha: What Should You Prioritize?

Power Jewels vs Soul Upgrades Overview

In Onimusha Warlords, character progression comes from two main sources: Power Jewels (and Magic Jewels) that permanently increase your base stats, and soul-based upgrades that improve your weapons and magic gauge through the Oni Gauntlet. Understanding which to prioritize affects your combat effectiveness throughout the game.

Power Jewel Analysis

What Power Jewels Do

Each Power Jewel permanently increases your maximum HP by one bar. With approximately 10 Power Jewels in the game, collecting all of them significantly increases your survivability.

Advantages

• Immediate benefit: HP increase is instant and always active
• No farming required: Power Jewels are found in fixed locations
• Survivability: More HP means more room for mistakes in boss fights
• Free healing: More max HP means green souls heal a smaller percentage, extending their effective value

Disadvantages

• Resets in New Game Plus: Must be recollected each playthrough
• Fixed quantity: Only 10 exist in the game, capping your HP
• Does not increase damage: More HP helps you survive but does not kill enemies faster

Soul Upgrade Analysis

What Soul Upgrades Do

Red souls upgrade weapon attack power (up to 5 levels per weapon). Blue souls upgrade magic gauge capacity (up to 5 levels). These upgrades are powered by absorbed souls from defeated enemies.

Advantages

• Carries to NG+: Weapon and magic gauge upgrades persist in New Game Plus
• Unlimited farming: Souls can be farmed indefinitely in the Dark Realm
• Increases damage: Weapon upgrades directly increase your damage output
• Magic access: Magic gauge upgrades enable more magic attacks per fight

Disadvantages

• Requires farming: Souls must be actively collected, which takes time
• Opportunity cost: Spending souls on one weapon means less for others
• Diminishing returns: Higher upgrade levels cost more souls for the same incremental benefit

Direct Comparison Table

Recommended Priority Order

Follow this priority order for optimal character progression:

Early Game

1. Collect Power Jewels in story areas: Grab every Power Jewel you encounter during normal exploration. They are free and require no farming.
2. Upgrade one weapon to level 3: Spend red souls on your preferred elemental sword for immediate damage increase.
3. Upgrade magic gauge to level 2: Spend 8 blue souls for a second magic bar.

Mid Game

1. Collect Power Jewels from hidden areas: Check behind breakable walls and in hard-to-reach locations.
2. Max your primary weapon to level 5: Focus all red souls on one weapon (50 total).
3. Upgrade magic gauge to level 3: Spend 15 more blue souls (23 cumulative).

Late Game

1. Enter the Dark Realm: Collect Power Jewels on floors 7 and 17, and Magic Jewel on floor 13.
2. Max magic gauge to level 5: Spend remaining blue souls (83 cumulative total).
3. Upgrade secondary weapons: Use surplus red souls to level up other elemental swords.
4. Obtain the Bishamon Sword: Complete the Dark Realm for the ultimate weapon.

Recommendations by Playstyle

For New Players: Prioritize Power Jewels

New players benefit more from extra HP, as it provides a buffer for mistakes. Collect Power Jewels during exploration and do not worry about optimal soul farming. Upgrade weapons only when you have surplus souls.

For Experienced Players: Prioritize Soul Upgrades

Experienced players who can dodge and Issen reliably benefit more from damage increases. Focus on maxing one weapon early and upgrading the magic gauge for more offensive options.

For S Rank Runs: Balance Both

S Rank requires fast completion, minimal items, and high soul collection. Max your weapon and magic gauge early through Dark Realm farming, then collect all Power Jewels for survivability without needing healing items.

For NG+: Focus on Power Jewels

Since weapon and magic gauge upgrades carry over to NG+, your souls are already invested. Focus entirely on recollecting Power Jewels and Magic Jewels, as they reset each playthrough.