Castorice Best Team Compositions – Honkai Star Rail

Updated on Mar 12, 2026 5 min read

Castorice is a 5-star Quantum Remembrance unit in Honkai: Star Rail who works as a main DPS by summoning the Memosprite Netherwing to deal damage and can revive the whole team once with her off-field skill. Her core loop is gaining special energy from HP sacrifice, HP restoration, and taking damage—then using her Ultimate to summon the Netherwing. This guide covers her best team compositions, support and healer choices, and tips so you can get the most out of her.

Official links: Castorice (HSR Wiki).

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Castorice Gameplay Summary

Castorice charges her Ultimate via team HP changes (sacrifice, healing, taking damage). When Netherwing is not on the field, her Skill speeds the cycle by sacrificing ally HP (Memosprite HP counts too—Trailblazer pairs well). When Netherwing is on the field, her Skill becomes an EX attack and HP sacrifice fills Netherwing’s HP instead. Netherwing can claw strike, breathe fire (damage ramps as it consumes HP), or self-destruct when it leaves. Team strategy revolves around fast special-energy cycles and strong healing.

Team Composition Strategy

When building around Castorice, consider:

Factor	What to do
Taking damage	High enemy count and frequent attacks help charge her. Defence stats on Relics are less important.
HP restoration	Use healers with multiple healing sources (off-turn, on action, on hit). Gallagher and Luocha work well; Hyacine (Remembrance healer) is a strong fit when available.
HP sacrifice	Prioritise HP on Relics. Tribbie’s high HP and follow-up healing suit Castorice. Keep the team at high HP overall.

Best Castorice Teams

Slot	Role
Castorice	Main DPS – Netherwing damage; benefits from buffs and healing cycles.
Evernight	Sub-DPS – CRIT DMG and team buffs via Memosprite; amplifies Castorice.
Cyrene	Support – Synergy core: stat boosts, DEF penetration, energy flow.
Hyacine	Healer – HP restore, Max HP boost, Newbud accumulation via Little Ica.

Alternative core: Tribbie, Castorice, Sunday, Gallagher or Luocha. Tribbie is a key support (high HP, all-attribute RES penetration, vulnerability, follow-up healing). Sunday gives turn-advance and energy so Castorice can use EX skills more; Netherwing does not get Sunday’s buffs, but Castorice does—use Castorice Ultimate before Sunday acts, then EX to heal Netherwing so it can breathe fire and self-destruct. Gallagher suits 3+ enemies; Luocha suits 1–2 enemies or Simulated Universe. Hyacine is an upgrade over both when available.

With Trailblazer: Tribbie, Castorice, Trailblazer, Gallagher/Luocha. Trailblazer’s Memosprite lets Netherwing benefit from buffs easily; Memosprite HP changes also charge Castorice’s Ultimate and provide turn-advance, CRIT, and damage buffs.

Dual DPS: Tribbie, Castorice, Mydei, Gallagher/Luocha. Viable but less flexible without turn-advance; similar to early Jingliu+Blade comps.

F2P and Alternative Picks

Ruan Mei can replace Tribbie when paired with Castorice’s signature weapon (defence reduction helps close the gap), but Tribbie’s follow-up healing is hard to match. F2P-friendly team: Castorice, Trailblazer, Ruan Mei, Gallagher (Gallagher has rate-up on Castorice’s banner; Trailblazer is free; Ruan Mei from events).

Hyacine (Remembrance healer) is an upgrade over Gallagher/Luocha for Castorice: she and her Memosprite both heal, and she has high speed with strong healing after speed-up.

Castorice vs The Herta (Support Overlap)

If you have Tribbie or Sunday, you can run Castorice and The Herta without conflict. If you have neither: use The Herta with Robin and Sparkle, and Castorice with Trailblazer and Ruan Mei. If you have only Sunday: The Herta + Trailblazer, Castorice + Sunday + Ruan Mei. If you have only Tribbie: The Herta + Tribbie, Castorice + Trailblazer + Ruan Mei.

Conclusion

Castorice’s best teams centre on Tribbie (or Ruan Mei), a healer (Gallagher, Luocha, or Hyacine), and either Sunday or Trailblazer for buffs and energy. Prioritise healing amount and frequency so her HP-sacrifice cycle stays strong. If you want to pull for Castorice or her gear without spending your own money, you can earn real cash through surveys, offers, and playing games on platforms like Earnne, then use it for Oneiric Shards or passes when you choose.