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Overview

Spirit Stones are equippable items that allow players to customize Emma's build in Beast of Reincarnation. They are socketed into Emma's armor, which provides up to six slots, and their bonuses stack when multiple stones are equipped. Notably, Spirit Stone effects compound when Emma performs successful parries — directly rewarding mastery of the combat system's core defensive mechanic.

Core Stats

Spirit Stones affect five core stats:

• HP — Maximum health.

• Attack — Damage output.

• Defense — Damage reduction.

• Skill Power — Effectiveness of abilities and Blooming Arts.

• Critical Rate — Chance of dealing critical damage.

Parry Stacking

The defining feature of Spirit Stones is their interaction with parrying. When Emma successfully parries an enemy attack, her equipped Spirit Stone bonuses compound, growing stronger with each successive parry. This creates a powerful incentive loop: skilled parrying not only generates FP for Koo's abilities but also amplifies Emma's own stats, making her progressively more dangerous as a fight continues.

Known Effects

Confirmed Spirit Stone effects include:

• Vigor Buffs — General stat boosts to multiple categories.

• Low-HP Attack Boost — Increased damage when Emma's health drops below a threshold — high risk, high reward.

• Stealth Bonuses — Enhanced stealth capabilities for players investing in the stealth skill tree.

• Tracking Projectiles — Ranged attacks that home in on targets.

Koo's Charms

Koo has an equivalent equipment system called Charms. While specific details on Charm effects are limited, they function as Koo's equivalent of Spirit Stones — equippable items discovered through exploration that provide unique passive benefits.

Build Crafting

The six-slot system combined with stackable and parry-compounding effects creates meaningful build diversity. Players can specialize — loading six attack-boosting stones for maximum damage — or diversify with a mix of defensive and offensive stones for sustainability. The parry-stacking mechanic rewards technical players with exponentially growing power, making Spirit Stone selection a strategic decision that shapes the entire combat experience.