Honkai: Star Rail - Best Castorice Builds (Light Cones, Relics, Team Comps)

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• Best Light Cones For Castorice

• Best Relics, Ornaments, & Stats For Castorice

• Best Team Comps For Castorice

• Skill (Trace) Priority For Castorice

Maximizing Castorice’s potential in Honkai: Star Rail through optimized builds—covering ideal Light Cones, Relics, stats, and team synergies—can significantly boost her effectiveness as a primary DPS. Castorice is a 5-star Quantum character who follows the Path of Remembrance, initially appearing as an NPC in Version 3.0 and later becoming playable in Version 3.2. Her gameplay revolves around siphoning HP from allies using her abilities, and once her gauge is full, she unleashes her Ultimate to summon Netherwing, her memosprite in Honkai: Star Rail.

In battle, Netherwing sacrifices its own HP to amplify its attacks. Castorice and Netherwing can also perform synchronized assaults on enemies, increasing overall damage. While her primary role is dealing damage, her memosprite can shield allies by absorbing fatal hits. Notably, Castorice has the unique ability to revive downed teammates during combat—even when not actively in the party—making her a valuable asset even if not always fielded. To fully harness her capabilities, investing in her optimal builds is essential.

Best Light Cones For Castorice

Limited Choices For Optimal Performance

The first step in building Castorice effectively is selecting a strong Light Cone. Her best-in-slot option is Make Farewells More Beautiful, her signature 5-star Light Cone. This weapon boosts the wearer’s Max HP by 30%. Whenever the user or their memosprite loses HP during their turn, they gain the Death Flower effect, allowing both to ignore 30% of the enemy’s DEF for two turns. When the memosprite disappears, the user’s action advances by 12%, which can trigger once per Ultimate usage and resets upon using the Ultimate again.

Below is a breakdown of the top-tier build recommendations for Castorice in Honkai: Star Rail, including preferred Light Cones, strongest Relic and Ornament sets, key stats, and more:

Make Farewells More Beautiful synergizes perfectly with Castorice’s mechanics. Her damage scales with Max HP, which receives a major boost from this Light Cone. Additionally, both she and Netherwing frequently lose HP during combat, ensuring the Death Flower effect remains active most of the time. If you don’t own this Light Cone, your next best option is the 4-star Sweat Now, Cry Less. It grants a 12% CRIT Rate increase, and when the memosprite is active, both the user and memosprite deal 24% more DMG in Honkai: Star Rail.

These values are for S1 (Superimposition level 1). At S5, the bonuses rise to 20% CRIT Rate and 36% increased DMG.

As of Version 3.2, other Light Cones on the Remembrance path aren’t viable for Castorice. Aglaea’s signature Light Cone, Time Woven Into Gold, boosts DMG and SPD—but increased SPD contradicts the optimal stat setup tied to her Relic effects. The same applies to the F2P 5-star Memory’s Curtain Never Falls. Other Remembrance Light Cones either support allies via memosprite buffs or offer underwhelming stats. Therefore, Castorice’s peak performance hinges on acquiring a 5-star Light Cone, either through gacha or battle pass rewards in Honkai: Star Rail.

Best Relics, Ornaments, & Stats For Castorice

Prioritize CRIT and HP for Maximum Output

For Relics, Castorice performs best with the full 4-piece set of Poet of Mourning Collapse. The two-piece bonus increases Quantum DMG by 10%, while the four-piece effect reduces SPD by 8%. Before battle begins, if the wearer’s SPD is below 95 (or 110 for lower-level content), they gain a 32% (or 20%) CRIT Rate boost, which also applies to their memosprite. This makes it crucial to avoid SPD-increasing Light Cones—ensuring the 32% CRIT Rate bonus is always active for both Castorice and Netherwing in Honkai: Star Rail.

To further enhance her stats, the ideal Ornament set is Bone Collection’s Serene Demesne. Its two-piece bonus raises Max HP by 12%, and when Max HP reaches 5,000 or higher, both the user and memosprite gain 28% CRIT DMG. Given that HP is a core stat for Castorice, this threshold is easily met.

When farming Relics and Ornaments, focus on CRIT Rate, CRIT DMG, HP, and Quantum DMG Bonus. CRIT Rate is highly valuable, but aim to use a chestpiece with CRIT DMG as the main stat, then stack CRIT Rate through sub-stats and passive Traces. Ideally, CRIT DMG should be around 150%, significantly higher than CRIT Rate. Remaining stats should prioritize HP. While a Quantum DMG Bonus sphere is acceptable, additional HP may offer better scaling depending on your build.

Best Team Comps For Castorice

Versatile Synergy Across Multiple Team Types

To maximize Castorice’s performance, pairing her with supportive teammates is key. As a DPS, she excels in hypercarry compositions. When teamed with Tribbie, who provides universal RES PEN and increases enemy vulnerability, Castorice shines. Additionally, Tribbie benefits from high-HP teammates, which Castorice naturally supports. Her kit also pairs well with the Remembrance Trailblazer or Sunday in Honkai: Star Rail—though Sunday’s Energy Regeneration buffs provide little benefit to Castorice.

Below are some effective team compositions for Castorice:

Castorice also thrives in dual-DPS teams featuring HP-dependent characters. Teaming her with Mydei or Blade allows sustained high damage output, as all members maintain high HP pools, amplifying the

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