Castorice Tier List Honkai Star Rail

TL;DR

• S Tier: Tribbie, Remembrance Trailblazer (Ice), Hyacine (upcoming), Sunday, Gallagher, Luocha
• A Tier: Ruan Mei, Lingsha, Mydei, Blade
• B Tier: Sparkle, Bronya, Pela, Jiaoqiu
• C Tier: Bailu, Huohuo, Arlan, Silver Wolf

The Tier List: Castorice's Character Rankings

S-Tier: Top-Tier Powerhouses

Tribbie: This five-star Quantum Harmony character stands out as a remarkably versatile support unit. Her kit boasts the rare and potent ability to increase all allies' All-Type RES PEN, significantly boosting the entire team's damage output regardless of enemy elemental resistances. Furthermore, Tribbie possesses a unique talent that allows her to launch follow-up attacks whenever an ally uses their Ultimate, contributing substantial additional damage, especially in AoE scenarios. Her Ultimate ability creates a special zone that increases the damage enemies take and deals extra Quantum damage based on the number of enemies hit, further amplifying her team's offensive capabilities. Tribbie's damage scales with her Max HP, making her relatively easy to build and slot into various team compositions, where she consistently provides a significant damage increase. The general consensus within the Honkai Star Rail community recognizes Tribbie as a top-tier Harmony unit due to her universal buffs and impressive personal damage contribution.

Remembrance Trailblazer (Ice): As the Trailblazer embraces the Path of Remembrance, they become a powerful Ice support character centered around their memosprite, Mem. This unique unit provides a multifaceted support package, offering frequent 100% Action Advance to allies at no Skill Point cost, allowing for more frequent turns for damage dealers. Mem also grants a substantial True DMG buff, which acts as a final damage multiplier, significantly increasing an ally's damage output regardless of enemy defenses. Additionally, the Remembrance Trailblazer passively increases all allies' CRIT DMG, further enhancing their offensive potential. Their Technique provides a strong advantage at the start of battles by delaying all enemies, offering crucial setup time for the team. The Remembrance Trailblazer's flexibility and the unique combination of action manipulation and damage amplification solidify their place as a top-tier support option.

Hyacine (upcoming): While not yet officially released, the buzz surrounding Hyacine, a predicted five-star Wind Remembrance healer, positions her as a potential game-changer. Leaks suggest she will scale primarily with HP, featuring a memosprite named Ica. Her kit is anticipated to revolve around HP-drain healing, potentially offering high-frequency, small-scale heals, and team-wide HP buffs. Hyacine is also rumored to possess an exceptionally high Speed stat, potentially allowing for multiple actions within a single turn and enabling synergies with speed-dependent mechanics. Furthermore, her traces may grant her the ability to cleanse debuffs from allies, adding valuable utility. Given her anticipated synergy with HP-scaling DPS characters like Castorice, Mydei, and Blade, and her potential to redefine the sustain role with a focus on proactive healing and HP manipulation, Hyacine's predicted abilities justify her placement in the S-tier, though this remains tentative until her official release.

Sunday: This five-star Imaginary Harmony character excels as a potent offensive support, particularly for summon-based teams and hypercarry compositions. His Skill mirrors Bronya's in its ability to grant an ally an immediate turn and boost their damage, but it offers additional benefits for characters with summons, significantly amplifying their damage. Sunday's Talent further enhances the buffed ally by granting a substantial CRIT Rate increase for three turns, making him incredibly valuable for crit-reliant damage dealers. His Ultimate restores a portion of an ally's Energy and grants them a CRIT DMG buff based on Sunday's own CRIT DMG, ensuring more frequent Ultimate usage and increased damage potential. In ideal scenarios, Sunday's Skill can even be Skill Point neutral, allowing for more flexibility in team compositions. His ability to significantly boost both the action economy and damage output of key allies firmly establishes him as a top-tier Harmony unit.

Gallagher: Despite being a four-star Fire Abundance character, Gallagher's unique healing mechanics and offensive utility place him firmly in the S-tier. His Ultimate inflicts the "Besotted" debuff on all enemies, causing allies to heal whenever they attack a Besotted target. This allows for a more offensive approach to team sustain. Furthermore, Gallagher's Talent increases the Break DMG that Besotted enemies receive, making him an excellent partner for Break-focused DPS units like Firefly and Boothill. His enhanced Basic ATK also reduces the target's ATK, providing an additional layer of defensive utility. Gallagher's ability to contribute both healing and damage enhancement, particularly in the current Break meta, makes him the best four-star sustain option available.

Luocha: This five-star Imaginary Abundance character remains a premier sustain option in Honkai Star Rail. Luocha's healing is primarily passive through his Talent, which deploys a field that heals allies whenever they attack an enemy within it. His Skill provides immediate healing and, crucially, automatically triggers on any ally whose HP falls below 50% without consuming Skill Points, making him incredibly Skill Point efficient. Luocha's Ultimate removes one buff from all enemies, providing valuable utility against foes with persistent buffs. His kit ensures consistent healing output with minimal Skill Point investment, making him a comfortable and reliable choice for sustaining teams through challenging content.

A-Tier: Excellent Choices

Ruan Mei: This five-star Ice Harmony character is a cornerstone support unit renowned for her comprehensive suite of buffs. Ruan Mei's Skill grants her "Overtone," which increases all allies' DMG and Weakness Break Efficiency, significantly accelerating the process of breaking enemy Toughness. Her Ultimate deploys a field that further increases all allies' All-Type RES PEN and applies "Thanatoplum Rebloom" to enemies, extending the duration of Weakness Break and dealing additional Break DMG. Ruan Mei's Talent increases the team's SPD (excluding herself) and allows her to deal additional Break DMG when allies break an enemy's Weakness. Her ability to enhance both damage and Break potential makes her an invaluable asset in a wide range of team compositions, particularly those focused on exploiting enemy weaknesses.

Lingsha: This five-star Fire Abundance character introduces a unique healing and damage dynamic with her summoned entity, Fuyuan. Lingsha's Skill deals AoE Fire damage and heals all allies while advancing Fuyuan's action. Her Ultimate inflicts the "Befog" debuff, increasing the Break DMG enemies receive, and deals AoE Fire damage while healing the team and advancing Fuyuan's action significantly. Fuyuan itself attacks all enemies and heals allies, with its follow-up attack dispelling debuffs and dealing additional damage to weakened foes. Lingsha's kit scales with ATK and Break Effect, allowing her to contribute substantial Toughness damage alongside her healing capabilities. Her unparalleled synergy with the Break archetype and strong emergency healing potential make her an excellent sustain option with offensive presence.

Mydei: This five-star Imaginary Destruction character offers a unique high-risk, high-reward playstyle centered around HP manipulation. Mydei's Skill consumes his own HP to deal significant Imaginary damage. His Talent allows him to enter the "Vendetta" state by losing HP, which enhances his abilities and provides self-healing. While in "Vendetta," Mydei automatically uses enhanced Skills, culminating in a powerful Blast attack. His Ultimate restores HP, deals Imaginary damage, and taunts enemies, potentially accelerating his Charge accumulation. Mydei's damage output scales with his Max HP, incentivizing building him for survivability as well as offense. While requiring careful HP management, Mydei's potential for high damage, particularly in Blast scenarios, makes him a strong A-tier DPS option.

Blade: This five-star Wind Destruction character is another DPS unit who utilizes his own HP to unleash powerful attacks. Blade's Skill consumes a portion of his HP to enter the "Hellscape" state, enhancing his Basic ATK to deal significantly more damage in a Blast area. Whenever Blade loses HP, he gains a Charge stack, and upon reaching maximum stacks, he launches a powerful AoE follow-up attack. His Ultimate sets his current HP to 50% of his Max HP and deals Wind damage based on both his ATK and the total HP he has lost in the current battle. Blade's self-sustaining mechanics and low Skill Point cost allow him to function effectively as a hypercarry or a secondary damage dealer, making him a valuable A-tier DPS.

B-Tier: Solid Performers

Sparkle: This five-star Quantum Harmony character provides crucial support for Skill Point-hungry DPS units. Sparkle's Skill increases a single ally's CRIT DMG and advances their action forward, allowing them to take more frequent turns. Her Ultimate recovers four Skill Points for the team and grants all allies the "Cipher" effect, which further enhances the damage boost provided by her Talent. Sparkle's Talent increases the team's maximum Skill Points by two and boosts all allies' DMG whenever a Skill Point is consumed. Her ability to alleviate Skill Point pressure and provide significant CRIT DMG buffs makes her a valuable asset in teams that rely heavily on skill usage.

Bronya: As a five-star Wind Harmony character, Bronya offers a versatile set of offensive support abilities. Her Skill dispels a debuff from a single ally, allows them to immediately take action, and increases their DMG for one turn. Bronya's Ultimate increases the ATK and CRIT DMG of all allies for two turns, providing a significant team-wide damage boost. Her Talent advances her own action forward after using her Basic ATK, allowing for more frequent turns. Bronya's ability to manipulate turn order, cleanse debuffs, and provide substantial offensive buffs makes her a strong support choice for a variety of DPS characters.

Pela: This four-star Ice Nihility character is a highly effective debuffer. Pela's Skill removes one buff from a single enemy and deals Ice damage. Her Ultimate deals AoE Ice damage and inflicts the "Exposed" debuff on all enemies, significantly reducing their DEF for two turns. Pela's Talent restores additional Energy whenever she attacks a debuffed enemy, contributing to her high Ultimate uptime. Her Technique allows her to attack all enemies upon entering battle and apply a DEF reduction debuff. Pela's ability to consistently apply AoE DEF shred makes her an invaluable support for increasing the overall damage output of the team.

Jiaoqiu: This five-star Fire Nihility character specializes in enhancing damage received by enemies. Jiaoqiu's Basic ATK, Skill, and Ultimate can inflict the "Ashen Roast" debuff, which increases the damage enemies take and also applies a Fire Damage-over-Time (DoT) effect. His Ultimate activates a zone that further increases the Ultimate damage enemies receive and has a chance to apply additional stacks of "Ashen Roast" when enemies take action. Jiaoqiu's primary role is to amplify the damage of Ultimate-reliant DPS characters, making him a valuable asset for specific team compositions.

C-Tier: Ok ok

Bailu: This five-star Lightning Abundance character is a dedicated healer with a focus on maximizing team survivability. Bailu's Skill heals a single ally and then heals two random allies, though the subsequent heals are less potent. Her Ultimate heals all allies and applies the "Invigoration" effect, which provides additional healing when allies are hit. Bailu's Talent allows her to revive an ally once per battle, offering a crucial safety net. While her healing output is substantial, she lacks utility such as debuff removal, which can be crucial in certain end-game scenarios.

Huohuo: This five-star Wind Abundance character provides a mix of healing and offensive support. Huohuo's Skill heals a single ally and adjacent allies while dispelling one debuff. Her Ultimate regenerates Energy for all allies and increases their ATK for two turns. Huohuo's Talent grants her "Divine Provision" after using her Skill, which heals allies at the start of their turn or when they use their Ultimate and can also dispel debuffs. While offering more utility than Bailu with her debuff removal and ATK buff, her healing can be less consistent and relies on the "Divine Provision" uptime.

Arlan: This four-star Lightning Destruction character is a single-target DPS who utilizes his own HP to fuel his attacks. Arlan's Skill consumes 15% of his Max HP to deal significant Lightning damage to a single enemy. His damage increases when his HP is below 50%, encouraging a low-HP playstyle. Arlan's Ultimate deals Blast Lightning damage to a target and adjacent enemies. His Talent further increases his damage based on the percentage of HP he has lost. Arlan's HP-dependent nature and single-target focus make him a niche DPS option that requires specific team support to mitigate his HP consumption.

Silver Wolf: This five-star Quantum Nihility character specializes in applying debuffs and exploiting enemy weaknesses. Silver Wolf's Skill has a chance to implant a Weakness of an on-field ally's Type to the target enemy, reducing their DMG RES to that Weakness Type and also reducing their All-Type RES. Her Ultimate decreases the target enemy's DEF for three turns. Silver Wolf's Talent allows her to implant random "Bugs" that reduce enemy ATK, DEF, or SPD whenever she attacks. While incredibly powerful in "mono" Quantum teams or against enemies weak to Quantum, her reliance on RNG for Weakness implantation can make her less consistent in other scenarios.

Why Hyacine is S-Tier (Tentative): A Look at the Future of Sustain

Based on currently available information, Hyacine appears poised to be a transformative force in the sustain category. Her anticipated kit, centered around HP-drain healing, suggests a unique approach where she heals allies by utilizing her own HP, potentially in small, frequent bursts. The presence of her memosprite, Ica, who is expected to contribute AoE damage and further healing, hints at a dynamic and multi-faceted sustain playstyle. Her rumored high Speed stat could allow for exceptional action economy, translating to frequent healing and potential damage output. Furthermore, the possibility of team-wide HP buffs and debuff cleansing on her Skill and Ultimate would provide significant utility, particularly for teams built around HP manipulation, such as those featuring Castorice, Mydei, and Blade. Hyacine's design seems to deviate from traditional healers, emphasizing proactive healing and high-speed action, potentially establishing a new benchmark for sustain units. However, it is crucial to remember that this assessment is based on leaked information, and her final kit upon release may differ.

Conclusion: Your Journey, Your Team

This tier list offers a snapshot of the current Honkai Star Rail character landscape, providing a perspective on best units that works well with Castorice.

Tier	Character Name	Element	Path	Brief Description/Key Strengths
S	Tribbie	Quantum	Harmony	Excellent RES PEN buff, strong follow-up attacks, versatile support for various teams.
S	Remembrance Trailblazer (Ice)	Ice	Remembrance	Provides action advance, CRIT DMG buffs, and True DMG, flexible and strong support.
S	Hyacine (upcoming)	Wind	Remembrance	Tentatively high-tier due to anticipated HP-scaling healing, high speed, team HP buffs, and synergy with HP-based DPS.
S	Sunday	Imaginary	Harmony	Strong action advance, DMG buffs, CRIT Rate buffs, and energy restoration, especially for summon teams.
S	Gallagher	Fire	Abundance	Heals through enemy debuffs, increases Break DMG taken, top-tier 4-star sustain.
S	Luocha	Imaginary	Abundance	High healing throughput, AoE dispel, SP efficient, reliable sustain.
A	Ruan Mei	Ice	Harmony	Significant buffs to All-Type RES PEN, Weakness Break Efficiency, DMG, and SPD.
A	Lingsha	Fire	Abundance	Summoned entity for AoE damage and healing, increases enemy Break DMG taken, scales with Break Effect.
A	Mydei	Imaginary	Destruction	HP-scaling DPS, consumes HP for powerful attacks, strong Blast potential.
A	Blade	Wind	Destruction	Consumes HP for high damage, self-sustaining, SP-friendly DPS.
B	Sparkle	Quantum	Harmony	Increases CRIT DMG, advances ally actions, recovers Skill Points, valuable for SP-hungry DPS.
B	Bronya	Wind	Harmony	Dispels debuffs, advances ally actions, increases DMG and CRIT DMG, versatile offensive support.
B	Pela	Ice	Nihility	AoE DEF shred, dispels enemy buffs, high Ultimate uptime, universally applicable debuffer.
B	Jiaoqiu	Fire	Nihility	Inflicts "Ashen Roast" to increase damage taken, enhances Ultimate DMG, specialized support for Ultimate-reliant DPS.
C	Bailu	Lightning	Abundance	Strong healing capabilities, revive mechanic, lacks utility compared to other sustain options.
C	Huohuo	Wind	Abundance	Healing, energy regeneration, and ATK buffs, healing can be inconsistent.
C	Arlan	Lightning	Destruction	HP-dependent single-target DPS, requires specific team compositions.
C	Silver Wolf	Quantum	Nihility	Implants weaknesses, reduces enemy DEF and RES, powerful in "mono" Quantum teams but reliant on RNG.