Lament, Nethersea's Ripple
[Single Target]Deals Quantum DMG equal to 70% of Castorice’s Max HP to one designated enemy.
“Welcome to Okhema. I am Castorice. Apologies, it is my habit to keep my distance from others… I can get closer if you wish, however.”
Castorice is a Remembrance DPS who scales with HP. She does not use Energy. Instead she builds up Newbud from the HP your whole team loses, then uses her Ultimate to summon Netherwing and sweep the field with AoE damage. Her Skill costs no Skill Points. If you have no Quantum DPS yet, or no DPS released from Version 3.0 onward, Castorice is very much worth pulling.
Building a team for her is fairly easy: Trailblazer (Remembrance) and Gallagher are enough to get started. The catch is that she wants high stats on herself and on her teammates, and she does not work at all with shield-based sustains, so think twice if shielders are the only sustain units you have.
Every hit from Castorice and Netherwing scales off her Max HP. Stack HP, CRIT Rate and CRIT DMG, and skip SPD.
Make Farewells More Beautiful
Best
To Evernight's Stars
Great
The Flower Remembers
Great
Sweat Now, Cry Less
Great
Time Waits for No One
Stopgap
Poet of Mourning Collapse already gives a lot of CRIT Rate, so go for a CRIT DMG body, with HP% as the backup. Do not take SPD feet, use HP%. For the Planar Sphere, HP% comes first and Quantum DMG Boost second. Link Rope is HP%.
CRIT Rate is always worth having. CRIT DMG and HP% come right after and are both good, while flat HP is weaker. Avoid SPD so the Poet set stays fully active, and if you do have some, keep your SPD under 95.
Netherwing uses its Memosprite Skill over and over to deal damage, so level that first. The Memosprite Talent raises the DMG and healing of Wings Sweep the Ruins. Her Ultimate increases the All-Type RES reduction on enemies, and her Talent raises the DMG bonus she and Netherwing get when allies lose HP. Level her Skill early as well, since Castorice uses it for most of the fight. Basic ATK can be skipped.
Contained Dark Tide turns healing into Newbud, or into Netherwing's HP while it is on the field, up to 12% of max Newbud per ally. Where the West Wind Dwells gives each use of Breath Scorches the Shadow 30% more DMG, stacking up to 6 times. Inverted Torch raises her SPD by 40% while her HP is at 50% or more. All three matter a lot, so unlock them all early.
E1 makes Netherwing's attacks and her Enhanced Skill deal 120% of their normal DMG when the enemy is at 80% HP or lower, and 140% at 50% or lower. E2 gives 2 stacks of Ardent Will, which cover the HP Netherwing would spend on Breath Scorches the Shadow and advance Castorice's action, and her next Enhanced Skill gives her Newbud equal to 30% of the max. E4 only increases the healing your team receives, so you do not need it with a good healer. E6 adds 20% Quantum RES PEN, lets Netherwing reduce Toughness regardless of Weakness Type, and adds 3 more Bounces to Wings Sweep the Ruins.
Evernight and Cyrene are the two teammates that add the most to Castorice's damage. Evernight gives Netherwing a huge CRIT DMG boost, keeps detonating her own memosprite and drains her own HP, so Newbud fills up very fast. Cyrene lets Castorice overcharge her Ultimate up to 200%, which makes Wings Sweep the Ruins much stronger against 2 or fewer targets. Hyacine heals the whole team every turn and raises everyone's Max HP, exactly what Castorice needs.
Besides Castorice, this team is just the Trailblazer and two 4-stars. Trailblazer (Remembrance) should be at least E1 and gives Castorice CRIT DMG, True DMG and action advance. Pela uses her Ultimate to lower the DEF of all enemies, and Lynx uses her Skill to raise Castorice's Max HP.
Pair Castorice with a second DPS who also spends their own HP. Mydei drains his own HP and takes more DMG than usual since he has 0 DEF, so he feeds Castorice a steady stream of Newbud. In return, Castorice's team-wide HP drain helps Mydei charge his big attacks, and Netherwing lowers enemy All-Type RES and boosts the whole team's DMG. Gallagher heals through his debuff on enemies, and with Tribbie launching frequent AoE attacks, that healing produces even more Newbud.
Mortenax Blade is not Castorice's best support, but he fills in when her best supports are already used on another team. His HP drain helps charge her Ultimate, and he works very well with Tribbie and Hyacine. Tribbie brings RES PEN and makes enemies take more DMG, the kind of rare buff Castorice is short on.
Her most important support. Hyacine heals automatically after the team loses HP and easily reaches 200 SPD or more, so she heals everyone constantly and Newbud fills up very fast. Her Ultimate also raises the whole team's HP, which pushes Castorice's damage up too.
A supportive sub-DPS that fits her perfectly. Evernight gives Netherwing over 100% CRIT DMG and makes enemies take 30% more DMG from the whole team. She also keeps detonating her memosprite and drains her own HP, which feeds Castorice a lot of Newbud.
Cyrene's memosprite mirrors her HP changes, which generates extra Newbud. She lets Castorice overcharge her Ultimate up to 200%, and the overflow makes each Bounce of Wings Sweep the Ruins much stronger against 2 or fewer targets.
Gives RES PEN and makes enemies take more DMG, exactly the buffs Castorice is missing since she already has plenty of DMG% and CRIT DMG. These buffs also help Hyacine and Evernight hit harder.
Robin • Summeretto adds units that stay on the field the whole time, so AoE healing and AoE damage have more targets and Castorice builds Newbud faster. She also boosts Castorice's CRIT DMG and lets her ignore enemy DEF.
The Trailblazer's memosprite gives Castorice one more target to drain HP from. When its support is on Castorice, Netherwing gets it too, so both deal an extra 36% True DMG. The Trailblazer also gives the team 10% CRIT Rate and a good amount of CRIT DMG.
A good fit since his kit revolves around summons, but Netherwing does not pick up Skill and Ultimate buffs that Sunday applied earlier, and his Energy refund does nothing for Castorice.
A stand-in when her best supports are busy on another team. His HP drain helps charge her Ultimate, and he works well with Tribbie and Hyacine.
A double DPS pair that helps both sides. Castorice's team-wide HP drain charges Mydei's big attacks, while Mydei drains his own HP and takes a lot of damage, which feeds Castorice Newbud.
A 4-star healer, much weaker than Hyacine. His debuff heals every time an enemy is attacked, which generates lots of Newbud, but in Pure Fiction or against frail enemies the debuff is easily lost.
Castorice has no Energy. Every point of HP your team loses gives her 1 point of Newbud, and once it is full she can use her Ultimate. Max Newbud depends on the levels of the characters on the field, and at max Equilibrium Level it comes to 34000. Her Skill, Silence, Wraithfly's Caress, drains 30% of the current HP of every ally, herself included, and costs no Skill Points. Healing your allies receive also turns into Newbud thanks to the Contained Dark Tide Trace. That is why you need a healer who keeps healing, because a team that is not being healed has no HP left to drain.
Her Ultimate summons Netherwing with 165 SPD and advances its action by 100%, while also creating the Territory Lost Netherland, which lowers All-Type RES for all enemies. Netherwing also gives the whole team 10% more DMG for 3 turns when it arrives. It stays for 3 turns or until its HP runs out. During that time her Skill becomes Boneclaw, Doomdrake's Embrace: it drains 40% of the current HP of every ally except Netherwing, and Castorice and Netherwing launch a Joint ATK on all enemies. HP your allies lose during this time becomes Netherwing's HP instead of Newbud.
On its turn, Netherwing picks between two attacks. Claw Splits the Veil hits all enemies and ends the turn, saving its HP. Breath Scorches the Shadow spends 25% of Netherwing's Max HP to hit all enemies, can be used again and again in the same turn, and its DMG multiplier goes up on the second and third use, then stays there until Netherwing leaves. When Netherwing is at 25% HP or lower, using it once more drops it to 1 HP and triggers Wings Sweep the Ruins: 6 Bounces of Quantum DMG plus healing for the whole team. This attack also fires on its own when Netherwing disappears.
While Netherwing is on the field, allies who take damage or lose HP can only drop to 1 HP, and Netherwing takes the rest, but it loses 500% of that amount, so do not lean on this too much. Her Technique puts Castorice in the Netherveil state for 20 seconds. Attacking an enemy in this state summons Netherwing right at the start of the fight with HP equal to 50% of max Newbud, and she also gains Newbud equal to 30% of the max before Netherwing is summoned. The trade-off is that the whole team except Netherwing loses 40% of their current HP when the battle starts.
Deals Quantum DMG equal to 70% of Castorice’s Max HP to one designated enemy.
Consumes 30% of all allies’ current HP. Deals Quantum DMG equal to 63% of Castorice’s Max HP to one designated enemy and Quantum DMG equal to 38% 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.
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 25%. 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.”
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 25%. 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.
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.”

Deals Quantum DMG equal to 56.0% of Castorice’s Max HP to all enemies.

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 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.
After 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.”
Ultimate 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.
While Castorice is on the field, all allies’ HP restored when receiving healing increases by 20%.
Skill 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.
When 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 is a damage dealer who fights by summoning the memosprite “Netherwing: Pollux” and battling alongside it. “Netherwing” consumes its own HP to deal damage to enemies, and the more HP it consumes, the higher the damage. In combat, “Netherwing” can also take damage in place of an ally who is in danger.