Honkai Star Rail: Castorice Build Guide

Castorice is the newest 5-star unit to join the Honkai: Star Rail roster. She follows the Path of Remembrance and is part of the Quantum element, making her the first Quantum Remembrance unit in the game. In this guide we’ll give a brief overview of what Castorice does and how you can build her.

Castorice Overview

	Name	Castorice
	Rarity	5-star
	Element	Quantum
	Path	Remembrance
	VA	Saito Chiwa (JP)
Stats for Level 80
HP		1630
ATK		524
DEF		485
Speed		95

Castorice is a 5-star Quantum unit following the Path of Remembrance. She is a powerful DPS unit that lays waste to enemies with the help of her Memosprite, the Netherwing. Most of Castorice’s damage comes from her Ultimate, which summons Netherwing on the field and allows him to deal a ton of damage that scales with Castorice’s MAX HP. Generally, Castorice is a simple unit to use. You won’t ever have to use her Basic Attack, and you will mostly rely on her Ultimate and Skill to deal damage, with most of the damage coming from Netherwing’s attacks. The important thing to note about Castorice is that you want to stack as much HP on her as possible.

Castorice Best Light Cones

Rank	Light Cone	Effect
1	Make Farewells More Beautiful	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." "Death Flower" allows the wearer and their memosprite to ignore 30% of the target's DEF when dealing DMG, lasting for 2 turn(s). 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.
2	Sweat Now, Cry Less	Increases the wearer's CRIT Rate by 12%. When the wearer's memosprite is on the field, increases the DMG dealt by the wearer and their memosprite by 24%.
FREE TO PLAY
3	Post-Op Conversation	USED FOR HP STAT. EFFECT WILL NOT APPLYON CASTORICE!

As far as light cones are concerned, the best choice for Castorice is her signature LC, the [Make Farewells More Beautiful]. This light cone not only boosts Castorice’s MAX HP by a ton, but it also reduces enemies’ defenses, making it a powerhouse of a weapon. Apart from the [Make Farewells More Beautiful], you can also use Sweat Now, Cry Less, or any other light cone that has a high base HP.

Castorice Best Relics

Relic Set
Poet of Mourning Collapse x4
Main Stats
Body	Feet
CRIT DMG%	HP%
Substat priority
CRIT Rate = CRIT DMG > HP%
Planetary Set
Bone Collection's Serene Demesne x2
Main Stats
Phanar Sphere	Link Rope
HP%	HP%
Substat priority
CRIT Rate = CRIT DMG > HP%

For relics, you generally want to use the [Poet of Mourning Collapse] relic set, combined with two pieces of the [Bone Collection's Serene Demesne] planetary set to get the most out of Castorice’s damage.

Skill Priority

Lastly, for skills, you first want to focus on Netherwing’s skill and talent, followed by Castorice’s ultimate and talent, then skill, and finally basic attack.