HSR Castorice Build: Kit, Materials, Relics, Light Cones, Teams

Update: updated Castorice build and kit on April 03, 2025

Castorice is the most hyped character in Honkai Star Rail’s Amphoreus trailblazing arc. She played a huge role in the initial story arc, helping the Trailblazer navigate the old land of Castrum Kremnos in order to find the secret behind the Strife Titan’s immortality. Castorice’s playable kit features some of the most broken abilities in the game, making her a must-pull for all Honkai Star Rail players without exception.

So that you can you get the best out of Castorice, here we have created Castorice’s best build in Honkai Star Rail, including her teams, relics, light cones, stats, kit, and materials.

Honkai Star Rail (HSR) Castorice Build

Castorice is undoubtedly the most broken character in Honkai Star Rail with insane damage potential and an ability to revive teammates. However, you need to reach a certain threshold to get the best out of her kit. Here is the best Castorice build in Honkai Star Rail that will help you extract the most out of her kit.

• Relic: Poet of Mourning Collapse (4-piece)
• Planar Ornament: Bone Collection’s Serene Demesne
• Main Stats: Crit Damage (Body), HP% (Boots), HP % (Sphere), HP % (Link Rope)
• Light Cone: Make Farewells More Beautiful (5-star), Sweat Now, Cry Less (4-star)
• Team: Castorice, Tribbie, Sunday, Luocha

But, if you are looking for more build varieties, then don’t worry as we also have you covered. Below we have provided more relic, planar ornament, stats, light cone, and team options for Castorice’s best HSR build.

HSR Castorice Build: Best Relics

• Poet of Mourning Collapse (4-piece)
• Scholar Lost in Erudition and Longevous Disciple (2-piece)
• Genius of Brilliant Stars (4-piece)

The Poet of Morning Collapse is by far the best Relic set for Castorice. It increases her Quantum damage output and Crit Rate massively. Speed is not important with Castorice, as her team already prefers characters like Remembrance Trailblazer, Sunday and Robin for action forward. This allows her to take the full benefit of the Poet of Morning Collapse artifact set as it requires a low speed from the wearer.

Alternatively, you can use 2-piece sets of Scholar Lost in Erudition and Longevous Disciple to get a decent increase in Crit Rate and HP, which are both good stats for Castorice. Genius of Brilliant Stars relic set is another decent option as it increases Quantum damage and ignores 20% of enemy defenses.

HSR Castorice Build: Best Planar Ornaments

• Bone Collection’s Serene Demesne
• Rutilant Arena

Bone Collection’s Serene Demesne is hand’s down the best Planar Ornament for Castorice. It increases wearer’s max HP while also increasing their Memosprite’s Crit Damage when the wearer has 5k or more HP. Both these stats are high priority for Castorice, making this planar ornament perfect for her kit.

The old and trusted Rutilant Arena is a good Planar Ornament alternative for Castorice. It increases the wearer’s Crit Rate and Skill Damage, making it good for her. However, Castorice cannot benefit much from the increase in the Basic Attack damage from this set.

Castorice Build: Main and Sub Stats for Relics

• Body: Crit Damage% > HP%
• Boots: HP%
• Planar Sphere: HP%
• Link Rope: HP%
• Sub-stats: HP% (8000) > Crit Rate (above 80%) > Crit Damage (above 160%)

The entirety of Castorice’s kit scales on HP, so you must reach at least 8000 HP on her as first priority. After that, get Crit Rate and Crit Damage on Castorice to deal the most amount of damage using Netherwing. Try reaching 100% Crit Rate in total if you can, otherwise, 80% is the basic you must achieve. For Crit Damage, the more you have the better, but you need to get at least 160% Crit Damage on Castorice to deal a good amount damage with Crit hits.

Speed is useless for Castorice, so avoid adding Speed to the stats as it will make it difficult to trigger the Poet of Morning Collapse relic set.

Best Light Cones for Castorice Build in HSR

• Make Farewells More Beautiful
• Sweat Now, Cry Less
• Victory In a Blink

As there are very few Remembrance Light Cone currently in the game, Castorice doesn’t have that many options for her Light Cones. Her signature Light Cone, Make Farewells More Beautiful, is Castorice’ best in-slot Light Cone in Honkai Star Rail. We have given its effects in detail later in the article so check it out.

Sweat Now, Cry Less is the best 4-star Light Cone for Castorice, giving additional Crit Rate to Castorice and increasing her memosprite’s damage by 24%. This Light Cone becomes really strong from Castorice at higher superimposition levels. However, this is a Nameless Honor Light Cone so you need to spend IRL money to get it.

Other than that, you can use Victory in a Blink if you don’t have Nameless Honor. It increases wearer’s Crit Damage by 12%, making it useful for Castorice at higher superimposition levels.

Best Castorice Teams in Honkai Star Rail

• Castorice Hypercarry: Castorice, Tribbie/Remembrance Trailblazer, Sunday, Luocha
• Castorice Dual-DPS: Castorice, Mydei, Tribbie, Gallagher
• Mono-Quantum: Castorice, Tribbie, Silver Wolf, Gallagher
• F2P: Castorice, Remembrance Trailblazer, Hunt March 7th, Gallagher

Castorice is a DPS and a Sustain at the same time. However, her HP draining mechanic makes it a must to have a healer in the team to maximize on her damage potential. The best Castorice teammates are Tribbie, Remembrance Trailblazer, Sunday, Luocha and Gallagher.

Tribbie is simply the best Support in the game now and she can massively increase the damage output of any team. Also, she scales on HP, making her perfect for Castorice’s HP draining mechanic. Remembrance Trailblazer is also great with Castorice, as she buffs Crit Stats and can action forward allies.

Sunday almost doubles the damage output for Castorice, action forwarding her and Netherwing, while also buffing their Crit stats massively. However, Castorice cannot benefit from Sunday’s additional energy regeneration as she has 0 energy. Still, Sunday is the best hypercarry support for Castorice at the moment.

Now, when it comes to Sustain, Luocha and Gallagher are clearly the best options for Castorice. But, she can also use Huohuo and Lingsha, but at a lesser benefit. However, preservation sustains are useless with Castorice, unless it is in Simulated Universe. Castorice’s constant health drain makes it important for the team to have a healer, otherwise it can become impossible to survive.

Finally, Castorice can also work in Dual DPS team comps, alongside Mydei and Blade. Both of these characters love getting their HP reduced, which Castorice will gladly do for them the entire fight, while also sustaining them from death. Jingliu is also decent with Castorice, but she doesn’t compliment Castorice as well as Mydei and Blade.

HSR Castorice Rarity, Element, Path & Base Stats

Castorice’s rarity, path, stats and element have been revealed. Here are all the basic information on Castorice in Honkai Star Rail.

• Rarity: 5-star
• Path: Remembrance
• Element: Quantum
• Base HP: 1629
• Base Attack: 523
• Base Defense: 485
• Speed: 95
• Taunt: 100
• Max Energy: 0

Honkai Star Rail Castorice Drip Marketing

Castorice’s drip marketing reveals interesting information on the beloved Chrysos Heir of Amphoreus. She is named the ‘Servant of Death’, Castorice has the divine authority of Hand of Shadow. Thanatos is also mentioned in her Divine Authority but with a question mark, suggesting there is much more to be revealed later in the story.

The land that reveres death, Aidonia, where snow falls endlessly, has today drifted into a sweet slumber.
Castorice, daughter of the River of Souls, Chrysos Heir in search of “Death” Coreflame, sets forth. You must guard the lament of souls and embrace the solitude of destiny.
— Life and death are but a journey. When butterfly alights on the branch, what withers will bloom anew.

We already guessed that Castorice would pursue Death’s Coreflame during the Amphoreus arc, which is finally confirmed in her Drip marketing.

Honkai Star Rail Castorice Release Date

Castorice will release in the first phase of Honkai Star Rail 3.2, on April 09, 2025. She will be on the banners alongside Fugue, Jiaoqiu, and Acheron in HSR 3.2 banners. With so many high-profile characters featuring in version 3.2, you should take a look at the HSR codes list to get some extra Stellar Jades for gacha pulls.

Honkai Star Rail (HSR) Castorice Kit

Castorice’s kit has been revealed and it features some new mechanics. She is the first character in Honkai Star Rail who comes with a global passive ability. This ability allows her to revive any teammate when they are knocked out, even when she is not in the team. Castorice can also act as a Sustain and a support, making her the most broken character in the game. Here are all the details about Castorice’s kit in Honkai Star Rail:

• Unique Ability (Sanctuary of Mooncocoon): After obtaining Castorice or when Castorice is in the current team, receive the following effect: In battle, when an ally character receives a killing blow, all allies that received a killing blow in this action enter the “Mooncocoon” state. Characters in “Mooncocoon” temporarily delay becoming downed and can take 1 action normally. After the action, if they receive healing or have a Shield before their next turn, “Mooncocoon” is removed. Otherwise, they will be downed immediately. This effect can be triggered 1 time per battle.
• Basic Attack (Lament, Nethersea’s Ripple): Deals Quantum damage to a single target equal to 50% of Castorice’s Max HP.
• Skill (Silence, Wraithfly’s Caress): Consumes 30% of all allies’ Max HP. Deals blast Quantum damage equal to a 50% of Castorice’s Max HP to the main target and 30% to the adjacent targets. If current HP is insufficient, this ability will reduce HP to 1. Once Netherwing is on the battlefield, this Skill becomes Boneclaw, Doomdrake’s Embrace instead.
• Enhanced Skill (Boneclaw, Doomdrake’s Embrace): Consumes 40% of all allies’ current HP, except Netherwing’s, and then Castorice and Netherwing launches a Joint Attack on the target, dealing AoE Quantum damage equal to 30% and 50% of Castorice’s Max HP.
• Ultimate (Doomshriek, Dawn’s Chime): Summons the memosprite Netherwing and advances its action by 100%. At the same time, creates the Territory “Lost Netherland,” which decreases all enemies’ All Type Resistance by 20%. If the Damage boost from Castorice’s Talent is active, the effect is extended to Netherwing. Netherwing has and initial Speed of 165 and a set Max HP equal to 100% of max “Newbud.” After Netherwing acts 3 times or when its HP is 0, it disappears and dispels the territory “Lost Netherland”.
• Talent (Desolation Across Palms): Max “Newbud” is based on all characters’ levels on the battlefield. For each point of HP lost by all allies, Castorice gains 1 point of “Newbud.” When “Newbud” reaches its maximum, Castorice’s Ultimate can be used. When allies lose HP, Castorice’s and Netherwing’s Damage dealt increase by 20%. This effect can stack up to 3 times, lasting for 3 turns. When Netherwing is on the field, “Newbud” cannot be gained through Talent, and HP lost by all allies (except Netherwing) will be converted to an equal amount of HP for Netherwing.

• Technique (Wail, Death’s Herald): Enters the Netherveil state for 20 seconds. In this state, enemies are unable to approach Castorice on their own. Entering battle by attacking enemies in this state will summon Netherwing at the start of the combat. Netherwing starts with current HP equal to 50% of max Newbud. After entering the battle, it consumes 40% of all allies’ current HP and advances Netherwing’s action by 100%. After entering battle and before summoning Netherwing, Castorice gains “Newbud” equal to 30% of the maximum “Newbud.”
• Memosprite Skill 1 (Claw Splits the Veil): Deals AoE Quantum damage equal to 40% of Castorice’s Max HP.
• Memosprite Skill 2 (Breath Scorches the Shadow): Consumes HP equal to 25% of Netherwing’s max HP and deals AoE Quantum Damage equal to 24% of Castorice’s Max HP. In one attack, “Breath Scorches the Shadow” can be activated repeatedly, with the Damage multiplier increasing respectively to 28% / 34%, until 34%. The Damage Multiplier Boost effect will not be reduced before Netherwing disappears. When HP is at 25% or lower, activating the ability will reduce HP to 1, and then trigger the ability effect equal to that of the Talent “Wings Sweep the Ruins.”
• Memosprite Skill 3 (Wings Sweep the Ruins): Consumes all HP and deals 6 instances of Damage, with every instance dealing Quantum Damage equal to 50% of Castorice’s Max HP to one random enemy unit.
• Memosprite Talent 1 (Mooncocoon Shrouds the Form): Netherwing acts as “Backup” for allies when it is on the field. After allies take damage and their current HP reduces to a minimum of 1, Netherwing will start bearing the Damage received at 500% of the original Damage until Netherwing disappears.
• Memosprite Talent 2 (Roar Rumbles the Realm): When Netherwing is summoned, increases Damage dealt by all allies by 10% for 3 turns.
• Memosprite Talent 3 (Wings Sweep the Ruins): When Netherwing disappears, deals 6 instances of Damage, with every instance dealing Quantum damage equal to 40% of Castorice’s Max HP to one random enemy unit. At the same time, restores HP to all allies by equal to 6% of Castorice’s Max HP plus 800.
• Trace 1 (Contained Dark Tide): After ally targets (excluding Netherwing) receive healing, converts 100% of healed value into “Newbud.” If Netherwing is on the battlefield, the healing is instead converted into Netherwing’s HP. The converted value for each ally target cannot exceed 12% of “Newbud”‘s maximum limit. The accumulated conversion value from all units resets after any unit takes action..
• Trace 2 (Inverted Torch): While Castorice’s current HP is equal to 50% of her Max HP or higher, increases her SPD by 40%.
• Trace 3 (Where the West Wind Dwells): Each time Netherwing uses “Breath Scorches the Shadow,” increases its Damage dealt by 30%. This effect stacks up to 6 and lasts until the end of this turn.
• Trace Stat Boosts: 18.7% Crit Rate Boost, 14.4% Quantum Damage Boost, 13.3% Crit Damage Boost

Honkai Star Rail Castorice Materials

Total number of character ascension materials and trace level-up materials for Castorice:

HSR Castorice Character Ascension Materials:

• 15 Ethereal Omen
• 15 Echoing Wail
• 65 Darkveil Moonlight
• 15 Eternal Lament
• 308k Credits

HSR Castorice Trace Materials:

• 18 Bija of Consciousness
• 69 Seedling of Manus
• 139 Flower of Alaya
• 41 Ethereal Omen
• 56 Echoing Wail
• 58 Eternal Lament
• 12 Auspice Sliver
• 8 Tracks of Destiny
• 3M Credits

HSR Castorice Signature Light Cone

Castorice’s signature Light Cone — Make Farewells More Beautiful, has also been revealed in the HSR 3.2 livestream. Here are all the details we currently know about it:

• Name: Make Farewells More Beautiful
• Rarity: 5-star
• Path: Remembrance
• HP: 1270
• Attack: 529
• Defense: 396
• Effect: Increases the wearer’s Max HP by 30%. When the wearer or their memosprite loses HP during their own turn, the wearer gains “Death Flower,” which allows the wearer and their Memosprite to ignore 24% of the target’s Defense when dealing damage, lasting for 2 turns. When the wearer’s memosprite disappears, advances the wearer’s action by 12%. This effect can only trigger up to 1 time, and the trigger count resets every time the wearer uses Ultimate.

Honkai Star Rail Castorice Eidolons

Castorice’s Eidolons have also revealed alongside her kit in HSR. Here are all her eidolons:

• E1 (Snowbound Maiden, Memory to Tomb): When the target enemies’ HP is 80%/50% or lower, the Damage dealt with “Boneclaw, Doomdrake’s Embrace,” “Claw Splits the Veil,” “Breath Scorches the Shadow,” and “Wings Sweep the Ruins” is 120%/140% of the original Damage.
• E2 (Crown on Wings of Bloom): After summoning Netherwing, Castorice gains 2 stacks of Ardent Will. A maximum of 2 stacks can be possessed at any given time and can be used to offset the Netherwing’s HP consumption when using the Memosprite Skill while advancing Castorice’s action by 100%. The next usage of the Enhanced Skill makes Castorice gain 30% of maximum “Newbud” points.
• E3 (Pious Pilgrim, Dance in Doom): Ultimate Level + 2, Basic Attack Level + 1, and Memosprite Talent level + 1.
• E4 (Rest in Songs of Gloom): While Castorice is on the battlefield, all allies’ Incoming Healing increases by 20% when having their HP restored.
• E5 (Pristine Pages, Prophecy as Plume): Skill Level + 2, Talent Level + 2, and Memosprite Skill level + 1.
• E6 (Await for Years to Loom): When Castorice and Netherwing deals damage, increases Quantum Resistance Penetration by 20%, and additionally increases the Bounce count for Netherwing’s Talent “Wings Sweep the Ruins” by 3 times.

So, that’s everything we currently know about Castorice in Honkai Star Rail, including her build, kit, Materials, teams, light cones, relics, stats, Drip Marketing, and release date. If you have come across any other information, tell us in the comments below so that we can add it.