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Building an effective team for Castorice in Honkai: Star Rail presents unique challenges due to her specific kit requirements. To maximize her potential, she should be paired with characters boasting high health stats, while traditional shielding options offer little synergy. Despite this, both novice and experienced players can assemble a formidable team once they have collected suitable characters.
Although top-tier support heroes enhance Castorice’s effectiveness, players can engage in endgame content utilizing several accessible characters from the extensive roster of Honkai: Star Rail. Below are suggested team compositions, along with alternative options to optimize your Castorice build.
Premium Meta Castorice Team

- Castorice + Remembrance MC + Tribbie + Luocha
This configuration is among the most effective for Castorice, significantly boosting her damage output by providing crucial CRIT stats, True DMG, and All-RES PEN. Additionally, this setup enhances the recharge rate of her Ultimate ability. This recharge mechanism triggers as allies lose or gain health, allowing Castorice to charge her Ultimate more rapidly, particularly when partnered with HP-draining allies.
Featuring Tribbie, often built for maximum HP, and Mem—another ally who can shed health—this team accelerates Castorice’s Ultimate charge like no other. Luocha is the ideal healer for this setup, offering superior emergency healing capabilities that maintain the team’s overall health even while Castorice drains HP from her allies.
Alternate/Budget-Friendly Options
- Ruan Mei: If Tribbie is unavailable, Ruan Mei serves as a worthy alternative. She contributes to All-RES PEN and bonus damage while maintaining the SPD needed for the Poet of Mourning Collapse’s 4-piece bonus.
- Bronya: To optimize Castorice’s reliance on the Poet set for CRIT stats, pairing her with low SPD characters is key. Bronya’s Action Advance effect is synergistic with low SPD allies, and her DMG and CRIT DMG bonuses are invaluable for CRIT-focused constructs.
- Pela: Reducing enemy DEF provides significant advantages for any DPS hero, making Pela a solid choice, especially if the previously mentioned Harmony characters are unavailable.
- Lingsha: Serving as another AOE healer akin to Luocha, Lingsha can sustain the team. While her Break DMG debuff is less impactful than Tribbie or Ruan Mei’s enhancements, it is still beneficial, particularly when combined with Ruan Mei and an E6 Castorice.
- Gallagher: A preferred healer for many players, Gallagher can effectively maintain the vitality of Castorice and her teammates through his Ultimate, although timing is essential to maximize the benefits of the Besotted state’s healing.
Castorice Double DPS Team

- Castorice + Mydei + Remembrance MC + Luocha
This lineup mirrors the previous one, substituting one support character for Mydei. The synergy between Castorice and Mydei is remarkable—whenever Mydei loses health, his ability unleashes additional power, indirectly providing Castorice with enhanced Ultimate charge time and constantly supplying momentum for his own Vendetta state.
While Castorice may not achieve as high damage as she would with dedicated Harmony or Nihility units, the inclusion of Remembrance MC ensures she benefits from True DMG and Additional Crit buffs. Alternatively, if Luocha is not available, any of the previously listed alternatives can provide adequate healing support.