Welcome, Trailblazers! This Castorice Honkai Star Rail Build Guide covers everything you need to optimize Castorice’s performance in battle. Discover the best gear, team synergies, and strategies to make the most of this powerful character.
Castorice HSR Profile
A comprehensive Castorice Honkai Star Rail Build Guide is essential for mastering this upcoming 5-star Quantum DPS on the Path of Remembrance. Castorice uniquely commands Netherwing, a powerful summoned entity that unleashes devastating AoE Quantum damage, a feat achieved by strategically consuming team HP.
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- Path: Remembrance
- Element: Quantum
- Rarity: 5-Star
- Role: Main DPS with support and crowd control utility
Castorice Honkai Star Rail Build Guide: Best Build
Castorice, a formidable 5-star Quantum character on the Path of Remembrance, introduces a unique playstyle centered around high-HP-scaling and team sacrifice for explosive damage. This Castorice Honkai Star Rail Build Guide will show you how to master her intricate kit and unleash her full potential on the battlefield.
Castorice Best Light Cones
| Rarity | Light Cone Name | Why It’s Good |
| 5★ | Signature Light Cone (TBA) | Boosts HP-scaling, Quantum DMG, and AoE power; tailor-made for Castorice. |
| 5★ | In the Name of the World | Increases Effect Hit Rate and DMG to debuffed enemies; works well with CC. |
| 4★ | Good Night and Sleep Well | DMG scales with debuffs on enemies; great synergy for F2P setups. |
Best Relic Sets (Cavern Relics)
| Relic Set | 2-Piece Effect | 4-Piece Effect | Why It Works |
| Messenger Traversing Hackerspace | SPD +6% | After Ult, all allies’ SPD +12% for 1 turn | Enhances burst damage and supports team rotation. |
| Hackerspace + Longevous Disciple | SPD +6%, HP +12% | — | Boosts Castorice’s speed and HP for more damage and survivability. |
Best Planar Ornaments
| Ornament Set | 2-Piece Effect | Why It Works |
| Broken Keel | Effect RES +10%; if RES ≥30%, team CRIT DMG +10% | Supports team-wide CRIT output and keeps Castorice safe. |
| Sprightly Vonwacq | Increases Energy Regen Rate and lets wearer act earlier in battle | Speeds up Ult usage and rotation for consistent damage. |
Main Stat & Sub-Stat Priorities
- Body: CRIT Rate / CRIT DMG
- Feet: SPD or HP%
- Planar Sphere: Quantum DMG Boost or HP%
- Link Rope: Energy Regen Rate or HP%
Sub-Stat Priority:
- CRIT Rate / CRIT DMG
- SPD
- HP%
- Energy Regen Rate
Castorice HSR Best Teams
Choosing the right teammates is essential to unlock the full potential of Castorice HSR, especially when building around her HP-scaling and Quantum AoE mechanics.
Castorice F2P Team
| Role | Character | Why It Works |
| DPS | Castorice | Main HP-scaling DPS with Quantum AoE damage. |
| Support | Trailblazer (Ice) | At E1+, offers CRIT DMG buffs, True DMG, and turn advance for Castorice. |
| Support | Pela | Reduces enemy DEF to amplify Castorice’s damage. |
| Sustain | Lynx | Heals and boosts Castorice’s Max HP via Skill for better scaling. |
Castorice Hypercarry Team
| Role | Character | Why It Works |
| DPS | Castorice | Main carry; benefits from buffs and HP synergy. |
| Support | Trailblazer (Ice) | Provides CRIT DMG buff, turn manipulation, and crowd control. |
| Support | Tribbie | Synergizes with Castorice’s high HP to boost her own damage. |
| Sustain | Hyacine | Heals all allies and increases Max HP; helps build Newbud stacks faster. |
Best Relic Sets for Castorice
| Relic Set | Rating | Merits |
| Poet of Mourning Collapse x4 | ★★★★★ (Best) | Increases Quantum DMG and CRIT Rate for both Castorice and her memosprite. |
| Longevous Disciple x4 | ★★★★☆ | Boosts HP% and grants CRIT Rate when Castorice consumes her own HP. |
| Genius of Brilliant Stars x4 | ★★★☆☆ | Enhances Quantum DMG and allows partial DEF ignore; doesn’t affect memosprite. |
Best Planar Ornaments for Castorice
| Ornament Set | Rating | Merits |
| Bone Collection’s Serene Demesne | ★★★★★ (Best) | Boosts CRIT DMG for Castorice and her memosprite; easy to activate. |
| The Wondrous BananAmusement Park | ★★★★☆ | Increases CRIT DMG while the memosprite is active. |
Castorice’s Best Light Cones
| Light Cone | Rating | Why We Recommend It |
| Make Farewells More Beautiful | ★★★★★ (Best) | Increases HP, ignores enemy DEF, and advances turn when memosprite disappears. |
| Sweat Now, Cry Less | ★★★★☆ | Boosts CRIT Rate and DMG dealt by the memosprite. |
Other Recommended Light Cones
| Light Cone | Base HP (Lv. 80) | Notes |
| Flame of Blood, Blaze My Path | 1375 | High HP option with solid utility. |
| If Time Were a Flower | 1270 | Decent HP and supportive stats. |
| The Unreachable Side | 1270 | Offers CRIT and offensive stats. |
| She Already Shut Her Eyes | 1270 | Provides team healing and support. |
| Time Waits for No One | 1270 | Good for healing synergy and burst healing. |
| Flames Afar (F2P Option) | 1058 | Accessible Light Cone; decent early-game HP stats. |
Castorice HSR Eidolons
Castorice’s Eidolons in Honkai: Star Rail significantly enhance her combat capabilities, unlocking powerful upgrades that elevate her damage, utility, and team synergy.
| Eidolon | Name | Effect Description | Impact |
| E1 | A Memory, Surrendered to Time | Increases CRIT Rate and advances action when Netherwing disappears. | Enhances burst consistency. |
| E2 | A Memory, Left in Silence | Gains Energy when an ally drops below HP threshold. | Enables faster Ultimates; great synergy with HP drain. |
| E3 | Skill +2, Max Level: 15 | Increases Skill level cap. | Boosts main damage source. |
| E4 | A Memory, That Never Was | Boosts Netherwing effects and AoE damage. | Increases team-wide impact. |
| E5 | Ultimate +2, Talent +2 | Raises level cap for Ultimate and Talent. | Improves scaling and utility. |
| E6 | A Memory, Eternal and Unyielding | Enhanced Netherwing grants bonus damage and CRIT DMG to team. | Transforms Castorice into a hypercarry. |
Castorice’s Trace Priority
- Skill – Top Priority: Main source of damage and summons Netherwing.
- Ultimate – Second Priority: Key AoE tool and control support.
- Talent – Third Priority: Enhances passive mechanics tied to HP consumption.
- Basic Attack – Lowest Priority: Utility only, used for Skill Point generation.
Castorice’s Traces (Skills and Kit)
| Type | Name | Description | Key Aspect |
| Basic Attack | Moth’s Wingbeat (TBA) | Deals Quantum DMG to one enemy. | Used for Skill Point regen. |
| Skill | Newbud Awakening (TBA) | Summons Netherwing, deals AoE DMG using team HP. | Central to her DPS and unique playstyle. |
| Ultimate | Sanctuary of Mooncocoon | Burst AoE Quantum damage, refreshes Netherwing, adds CC or buffs. | Major burst tool. |
| Talent | Bloodline of Ecdysis | Builds Newbud stacks from HP loss and triggers Netherwing enhancements. | Core passive engine. |
| Technique | Lunar Cocoon Descent (TBA) | Pre-battle summon or shield/heal. | Strategic start-of-battle effect. |
Castorice Gameplay Guide
Castorice is a Quantum element, HP-scaling main DPS who follows the Path of Remembrance. Her gameplay revolves around summoning Netherwing, which consumes HP to deal AoE damage and apply debuffs.
How to Play Castorice Effectively
- Maintain Netherwing Uptime – Use Skill regularly to summon and empower Netherwing.
- Rotate Skill & Ultimate Wisely – Balance Newbud generation and burst timing.
- Manage HP – Pair with strong sustain units to offset HP costs.
- Build Newbud Stacks – Enhances all effects tied to her memosprite.
- Synergize Team – Include buffers and debuffers like Trailblazer (Ice), Pela, Ruan Mei.
With the right strategy and proper team synergy, Castorice HSR can become one of the most powerful burst-DPS units in Honkai: Star Rail. This Castorice Honkai Star Rail Build Guide gives you all the tools you need to master her kit, from relics to Eidolons.
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