Amphoreus
Build guide · Honkai: Star Rail
English voice: Melody Muze
The best Castorice build in Honkai: Star Rail (Version 4.4) is Make Farewells More Beautiful with Poet of Mourning Collapse. Updated August 28, 2026
Also works
#1
Memo Skill = Memo Talent
Max first
#2
Ultimate = Talent
Then
#3
Skill
Next
#4
Basic
Later
Major traces, best first: Contained Dark Tide (A2) > Where The West Wind Dwells (A6) > Inverted Torch (A4)
E1Snowbound Maiden, Memory to Tomb
E2Crown on Wings of Bloom
E3Level bump
E4Rest in Songs of Gloom
E5Level bump
E6Await for Years to LoomE1When the enemy target's current HP is 80%/50% of Max HP or lower, the DMG dealt to it by "Boneclaw, Doomdrake's Embrace," "Claw Splits the Veil," "Breath Scorches the Shadow," and "Wings Sweep the Ruins" is 120%/140% of the original DMG respectively.
E2After summoning the memosprite Netherwing, Castorice gains 2 stack(s) of "Ardent Will." "Ardent Will" can stack up to 2 time(s) and can be used to offset the HP cost of Netherwing's Memosprite Skill, "Breath Scorches the Shadow" and advance Castorice's action by 100%. When using the next Enhanced Skill, Castorice gains "Newbud" by an amount equal to 30% of max "Newbud."
E4While Castorice is on the field, all allies' HP restored when receiving healing increases by 20%.
E6When Castorice or Netherwing deals DMG, increases Quantum RES PEN by 20%. During Netherwing's attacks, can reduce enemy Toughness regardless of Weakness Types. When breaking Weaknesses, triggers the Quantum Weakness Break effect. And the number of Bounces for Netherwing's Talent "Wings Sweep the Ruins" additionally increases by 3.
Castorice pays HP for her memosprite, so the line-up pairs a healer who profits from that with two Harmony units that raise the memosprite’s own damage.
Castorice — this characterMain DPS
TribbieHarmony buffer
Ruan MeiHarmony buffer
HyacineSustainHonkai: Star Rail 5★ Quantum Remembrance Sustain
Make Farewells More Beautiful tops the light cone ranking for Castorice, at 123.10% relative damage at S1, ahead of The Flower Remembers, Sweat Now, Cry Less and Time Waits for No One. That order is prydwen.gg's, measured in play and rephrased here; every row of it sits under Light cones below.
Run Poet of Mourning Collapse on Castorice, with Scholar Lost in Erudition behind it. The planar ornament is Bone Collection's Serene Demesne. Main stats are CRIT DMG > HP% body, HP% feet, HP% > Quantum DMG sphere, HP% rope. Roll substats in the order CRIT DMG = CRIT Rate > HP% > SPD (Less than 95).
Trace priority is Memo Skill = Memo Talent > Ultimate = Talent > Skill > Basic.
The strongest team is Castorice, Tribbie, Ruan Mei and Hyacine, built around Castorice — Quantum · Remembrance.
Deals Quantum DMG equal to 50% of Castorice's Max HP to one designated enemy.
Ability level
6 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| Basic ATK DMG | 25% | 30% | 35% | 40% | 45% | 50% | 55% | 60% | 65% | 70% |
Consumes 30% of all allies' current HP. Deals Quantum DMG equal to 50% of Castorice's Max HP to one designated enemy and Quantum DMG equal to 30% of Castorice's Max HP to adjacent targets. If the current HP is insufficient, reduces the current HP down to 1. If Netherwing is on the battlefield, the Skill becomes "Boneclaw, Doomdrake's Embrace" instead.
Ability level
10 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Skill DMG | 25% | 28% | 30% | 33% | 35% | 38% | 41% | 44% | 47% | 50% | 53% | 55% | 57% | 60% | 63% |
| Adjacent DMG | 15% | 17% | 18% | 20% | 21% | 23% | 24% | 26% | 28% | 30% | 32% | 33% | 35% | 36% | 38% |
Consumes 40% of the current HP of all allies (except Netherwing). Castorice and Netherwing launch Joint ATK on the targets, dealing Quantum DMG equal to 30.0% and 50.0% of Castorice's Max HP to all enemies. If the current HP is insufficient, reduces the current HP down to 1.
Ability level
10 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Skill DMG | 15.0% | 16.5% | 18.0% | 19.5% | 21.0% | 22.5% | 24.4% | 26.3% | 28.1% | 30.0% | 31.5% | 33.0% | 34.5% | 36.0% | 37.5% |
| AoE DMG | 25.0% | 27.5% | 30.0% | 32.5% | 35.0% | 37.5% | 40.6% | 43.8% | 46.9% | 50.0% | 52.5% | 55.0% | 57.5% | 60.0% | 62.5% |
Summons the memosprite Netherwing and advances its action by 100%. At the same time, deploys the Territory "Lost Netherland," which decreases all enemies' All-Type RES by 20%. If Castorice has the DMG Boost effect from her Talent, then this effect spreads to Netherwing. Netherwing has an initial SPD of 165 and a set Max HP equal to 100% of max "Newbud." After Netherwing experiences 3 turns or when its HP is 0, it disappears and dispels the Territory "Lost Netherland."
Ability level
10 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Value 4 | 10% | 11% | 12% | 13% | 14% | 15% | 16% | 18% | 19% | 20% | 21% | 22% | 23% | 24% | 25% |
The maximum limit of "Newbud" is related to the levels of all characters on the battlefield. For every 1 point of HP lost by all allies, Castorice gains 1 point of "Newbud." When "Newbud" reaches its maximum limit, can activate the Ultimate. When allies lose HP, Castorice's and Netherwing's DMG dealt increases by 20%. This effect can stack up to 3 time(s), lasting for 3 turn(s). When Netherwing is on the field, "Newbud" cannot be gained through Talent, and every 1 point of HP lost by all allies (except Netherwing) will be converted to an equal amount of HP for Netherwing.
Ability level
10 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Talent DMG | 10% | 11% | 12% | 13% | 14% | 15% | 16% | 18% | 19% | 20% | 21% | 22% | 23% | 24% | 25% |
Deals Quantum DMG equal to 40.0% of Castorice's Max HP to all enemies.
Ability level
6 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| AoE DMG | 20.0% | 24.0% | 28.0% | 32.0% | 36.0% | 40.0% | 44.0% | 48.0% | 52.0% | 56.0% |
Launching "Breath Scorches the Shadow" will consume 25% of Netherwing's Max HP to deal Quantum DMG equal to 24.0% of Castorice's Max HP to all enemies. In one attack, "Breath Scorches the Shadow" can be launched repeatedly, with the DMG multiplier increased progressively to 28.0% / 34.0%. After reaching 34.0%, it will not increase further. The DMG Multiplier Boost effect will not decrease before Netherwing disappears. When Netherwing's current HP is equal to or less than 25% of its Max HP, launching this ability will actively reduce HP down to 1, and then trigger the ability effect equal to that of the Talent "Wings Sweep the Ruins."
Ability level
6 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| AoE DMG | 12.0% | 14.4% | 16.8% | 19.2% | 21.6% | 24.0% | 26.4% | 28.8% | 31.2% | 33.6% |
| Memosprite Skill DMG | 14.0% | 16.8% | 19.6% | 22.4% | 25.2% | 28.0% | 30.8% | 33.6% | 36.4% | 39.2% |
| Memosprite Skill DMG (2) | 17.0% | 20.4% | 23.8% | 27.2% | 30.6% | 34.0% | 37.4% | 40.8% | 44.2% | 47.6% |
Consumes all HP and deals 6 instance(s) of DMG, with each instance dealing Quantum DMG equal to 40.0% of Castorice's Max HP to one random enemy. At the same time, restores HP by an amount equal to 6% of Castorice's Max HP plus 800 for all allies.
Ability level
6 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| Memosprite Skill DMG | 20.0% | 24.0% | 28.0% | 32.0% | 36.0% | 40.0% | 44.0% | 48.0% | 52.0% | 56.0% |
| Heal | 3% | 4% | 4% | 5% | 5% | 6% | 7% | 7% | 8% | 8% |
| Heal (2) | 400 | 480 | 560 | 640 | 720 | 800 | 880 | 960 | 1040 | 1120 |
When Netherwing disappears, deals 6 instance(s) of DMG, with each instance dealing Quantum DMG equal to 40.0% of Castorice's Max HP to one random enemy. At the same time, restores HP by an amount equal to 6% of Castorice's Max HP plus 800 for all allies.
Ability level
6 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| Memosprite Talent DMG | 20.0% | 24.0% | 28.0% | 32.0% | 36.0% | 40.0% | 44.0% | 48.0% | 52.0% | 56.0% |
| Heal | 3% | 4% | 4% | 5% | 5% | 6% | 7% | 7% | 8% | 8% |
| Heal (2) | 400 | 480 | 560 | 640 | 720 | 800 | 880 | 960 | 1040 | 1120 |
After using Technique, enters the "Netherveil" state that lasts for 20 seconds. While "Netherveil" is active, enemies are unable to actively approach Castorice. During "Netherveil," active attacks will cause all enemies within range to enter combat. At the same time, summons the memosprite Netherwing, advances its action by 100%, and deploys the Territory "Lost Netherland." Netherwing has its current HP equal to 50% of max "Newbud." After entering battle, consumes 40% of the current HP of all allies (except Netherwing). If Netherwing is not summoned after entering battle, Castorice gains "Newbud" by an amount equal to 30% of max "Newbud."
When Netherwing is on the field, it acts as backup for allies. When allies take DMG or consume HP, their current HP can be reduced down to a minimum of 1, after which Netherwing will bear the HP loss. But Netherwing consumes HP equal to 500% of the original value. This lasts until Netherwing disappears.
When Netherwing is summoned, increases DMG dealt by all allies by 10%, lasting for 3 turn(s).
A2After ally targets (excluding Netherwing) receive healing, converts 100% of the healed amount into "Newbud." If Netherwing is on the field, this is converted to Netherwing's HP instead. Each ally target can accumulate a conversion amount up to 12% of the max "Newbud." After any unit takes action, all units reset their accumulated conversion amount.
A4When Castorice's current HP is higher than or equal to 50% of her Max HP, her SPD increases by 40%. When Netherwing uses "Breath Scorches the Shadow" and deals fatal damage to all enemies on the field or brings them to a point where their HP cannot be reduced further, Netherwing's SPD increases by 100%, lasting for 1 turn.
A6Each time Netherwing uses "Breath Scorches the Shadow," the DMG dealt increases by 30%. This effect stacks up to 6 time(s) and lasts until the end of this turn.
Totals at full unlock, summed across every node of that stat. Ascension rank gates the nodes as it gates the Bonus Abilities above.
Level 80 and every ability maxed
2,464,000
Credits 12 material lines
Ascension to 80
308,000
Credits 4 materials · 6 steps
All 4 abilities maxed
2,156,000
Credits 4× the single-ability bill
Ethereal Omen ×54,000Credits
Ethereal Omen ×108,000Credits
Darkveil Moonlight ×3
Echoing Wail ×616,000Credits
Darkveil Moonlight ×7Echoing Wail ×940,000Credits
Darkveil Moonlight ×20
Eternal Lament ×680,000Credits
Darkveil Moonlight ×35Eternal Lament ×9160,000Credits
Total to level 80
308,000 Credits
Darkveil Moonlight ×65Eternal Lament ×15Echoing Wail ×15Ethereal Omen ×15Ethereal Omen ×32,500Credits
Bīja of Consciousness ×2Ethereal Omen ×43,500Credits
Echoing Wail ×2
Seedling of Manas ×27,000Credits
Echoing Wail ×3Seedling of Manas ×416,000Credits
Echoing Wail ×6Seedling of Manas ×625,000Credits
Eternal Lament ×2
Flower of Ālaya ×235,000Credits
Auspice Sliver ×1Eternal Lament ×4Flower of Ālaya ×570,000Credits
Tracks of Destiny ×1Auspice Sliver ×1Flower of Ālaya ×6140,000Credits
Tracks of Destiny ×1Auspice Sliver ×1Flower of Ālaya ×13240,000Credits
One ability maxed
539,000 Credits
Tracks of Destiny ×2Auspice Sliver ×3Eternal Lament ×6Flower of Ālaya ×26Echoing Wail ×11Seedling of Manas ×12Bīja of Consciousness ×2Ethereal Omen ×7All 4 abilities maxed
2,156,000 Credits
Tracks of Destiny ×8Auspice Sliver ×12Eternal Lament ×24Flower of Ālaya ×104Echoing Wail ×44Seedling of Manas ×48Bīja of Consciousness ×8Ethereal Omen ×28E1When the enemy target's current HP is 80%/50% of Max HP or lower, the DMG dealt to it by "Boneclaw, Doomdrake's Embrace," "Claw Splits the Veil," "Breath Scorches the Shadow," and "Wings Sweep the Ruins" is 120%/140% of the original DMG respectively.
E2After summoning the memosprite Netherwing, Castorice gains 2 stack(s) of "Ardent Will." "Ardent Will" can stack up to 2 time(s) and can be used to offset the HP cost of Netherwing's Memosprite Skill, "Breath Scorches the Shadow" and advance Castorice's action by 100%. When using the next Enhanced Skill, Castorice gains "Newbud" by an amount equal to 30% of max "Newbud."
E3Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10. Memosprite Talent Lv. +1, up to a maximum of Lv. 10.
E4While Castorice is on the field, all allies' HP restored when receiving healing increases by 20%.
E5Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15. Memosprite Skill Lv. +1, up to a maximum of Lv. 10.
E6When Castorice or Netherwing deals DMG, increases Quantum RES PEN by 20%. During Netherwing's attacks, can reduce enemy Toughness regardless of Weakness Types. When breaking Weaknesses, triggers the Quantum Weakness Break effect. And the number of Bounces for Netherwing's Talent "Wings Sweep the Ruins" additionally increases by 3.
Quantum
Remembrance
