Kastoria in Honkai Star Rail: Detailed Guide and Best Build

Kastoria in Paths of Memory and belongs to a select group called the "Golden Descendants". As a primary damage dealer, he uses his skills and summons the spirit of memory during battle to deal with his opponents.

The key mechanics of the character are contained in absorbing health from allies, which allows you to activate a superpower and additionally increases the damage dealt. At the same time, the girl is not limited to just destroying enemies, offering boosts for squad and a small restoration of their HP.

Taking into the health consumption of partners, it is important to take care of the team assembly and the presence of a pumped representative of Abundance. In addition, the selection of equipment will play a significant role, since the heroine requires an integrated approach taking into the interaction with the spirit of memory. The guide to Kastoria includes all the above-mentioned features and allows you to implement it to the maximum.

Rating	S+ position in dash list
Rarity	⭐⭐⭐⭐⭐
[Type] element	Quantum Damage Type
Path	Memory
when added to the game	April 9, 2025 (patch 3.2)
How to get a character	Event Jump Banner: Character
Gender	Female
home planet	Amphoreus, "Eternal Land"
Role in the squad	Primary DPS character
Role in the game	Golden Descendant, "Servant of Death"
Signature light cone	"May the farewell be beautiful"
Voice actresses	English Voice Actress - Melody Muze Japanese Voice Actress - Saitou Chiwa Chinese Voice Actress - Ruan Congqing Korean Voice Actress - Lee Serena

The Heroine's Story

Kastoria is one of the chosen ones by the prophecy of Amphoreus along with the rest of the "Golden Descendants". Her main goal is to find the core of the flame of "death" in order to save the planet. She is also known as the daughter of the River of Souls, which must accompany the deceased to the other world.

Usually, the girl tries to keep her distance when communicating with other people, since her touch can cause immediate death.

How to get a character

You can knock out the girl in a special banner "Event Jump: Character" 3.2 versions. Event period: from 9 by 30 April 2025 years.

If you don't want to miss the Kastoria rerun, follow the updates in timetable banners.

Features

All basic stats of the character can be found in the table.

Level of	Basic Attack	Basic protection	Basic Health	Speed	Taunt
1	71	66	221	95	100
20	139	128	432	95	100
30	203	188	632	95	100
40	267	247	832	95	100
50	331	306	1031	95	100
60	395	366	1231	95	100
70	459	425	1430	95	100
80	523	485	1629	95	100

How Kastoria's skills work in HSR

The heroine belongs to the Path of Memory, therefore, her main mechanic is to summon and use the spirit of memory - Wings of Death. The creature is both the main source of damage and buffs for allies, while Kastoria is focused on periodic skill use and promoting the action of the spirit of memory by activating the super ability.

An equally significant and at the same time controversial element is health consumption of squad . This not only provides DPS boosts, but is also one of the ways to restore the ultimate, including HP regeneration for allies. In other words, when playing as a unit, you will have to constantly maintain a balance between the decrease in health and the need to activate the super ability.

Active skills

The skills used by the character include:

1. technique - gives a special state that does not allow enemies to approach. In addition, at the beginning of the battle, the spirit of memory immediately appears;
2. Basic attack - small quantum damage to one target;
3. Normal Skill - Drains HP of allies and deals quantum damage to multiple targets;
4. Enhanced Skill - Spends a little more HP on allies and performs a t attack with the Spirit of Memory;
5. Superpower - Summons the spirit of memory and advances its actions by 100%. Creates a space that reduces the penetration of all types of enemy resistance.

Below is a detailed description of Kastoria's skills, which will allow you to get more information about how they work.

ive skills

One ive has a direct impact on Kastoria's damage in battle, and the second is her unique resurrection feature, which affects the entire .

Talents and skills of the spirit of memory

The summoned creature's skills include:

1. normal skill - minor damage to all enemies;
2. enhanced skill - increased multiple damage to all targets (use does not end the turn);
3. Talent 1 - the spirit of memory, when the health of allies decreases to the min. threshold, begins to take damage;
4. Talent 2 - Increases damage dealt by all squad ;
5. Talent 3 - Allows you to deal additional damage to one enemy and restore some HP to allies before the creature disappears.

The order of leveling abilities

Memory Spirit Skill = Memory Spirit Talent > Super Ability = Talent > Skill > Basic Attack

The Memory Spirit skill is the main source of damage, and its talent is one of the key buffs for the team in the form of increased DPS. The girl's superpower and talent are no less significant skills that contain additional enhancements.

In turn, the heroine's skill allows her to deal damage with a t attack with Death Wings or restore energy. The basic attack is almost never used. For this reason, it remains at a low/minimum value in order to conserve materials.

Tracks

Crete. chance +2,7% (lvl.1)	Quantum. damage +3,2% (A2)	Crete. chance +2,7% (A3)
"A Restrained Dark Current" (A2): If the Spirit of Memory is not on the battlefield, 100% of the healing received by allies is converted into a charge of Renewing Bloom. If the unit is on the battlefield, the healing is converted into HP for it. The HP converted in this way cannot exceed 12% of the maximum charge of Renewing Bloom. The accumulated recovery is reset after the unit takes an action.	Crete. damage +5,3% (A3)	Crete. chance +4% (A4)
"Inverted Torch" (A4): If Kastoria's HP is 50% or more during battle, her Speed ​​is increased by 40%. When the Spirit of Memory uses the skill "Scorching Darkness Breath", dealing fatal damage to enemies or causing them to become unable to lose HP, her Speed ​​is increased by 100% for 1 turn.	Quantum. damage +4,8% (A5)	Crete. chance +4% (A5)
"Where the West Wind Awaits" (A6): Each time the Spirit of Memory uses the skill "Breath of Darkness", the damage dealt is increased by 30%. The effect stacks up to 6 times and lasts until the end of the current turn.	Crete. damage +8% (A6)	Quantum. damage +6,4% (lvl.75)	Crete. chance +5,3% (lvl.80)

Upgrading all traces with characteristics will provide the following final increase:

• crit chance +18,7%;
• quantum damage +14,4%;
• Critical damage +13,3%.

Eidolons

E1	If the enemy's HP is less than or equal to 80%/50% of their Max HP, the damage dealt by the unit's enhanced skill and the Spirit of Memory's abilities will be 120%/140% of the original damage.
E2	After summoning Death Wings, 2 levels of the Burning Will status are granted. A maximum of 2 stacks can be accumulated, which can be used to reduce the health consumption of the Spirit of Memory when activating the Breath of Darkness skill and advance Kastoria's action by 100%. The next use of the enhanced skill will restore 30% of the max charge of New Bloom.
E3	Superpower level +2. Max level - 15. Base attack level +1. Max level is 10. Spirit of Memory talent level +1. Max level is 10.
E4	While the unit is on the battlefield, healing received by allies is increased by 20%.
E5	Superpower level +2. Max level - 15. Base attack level +1. Max level is 10. Spirit of Memory talent level +1. Max level is 10.
E6	When Kastoria or Deathwings deal damage, Quantum Resistance Penetration is increased by 20%. Additionally, when attacking, the Spirit of Memory ignores enemy vulnerabilities and reduces their durability. The number of bounces of the Wings of Ruin talent is increased by 3.

The best eidolons of Kastoria are first, second и sixth:

• E1 Increases damage from character abilities and the spirit of memory. Depending on how low the enemy's HP is (80%, 50% or lower), the girl's enhanced skill and all of Death Wing's attack skills will deal more damage.
• E2 Provides more survivability for the Spirit of Memory and allows Kastoria to immediately perform an action after using a dragon skill, while making it easier to build up a charge of Renewal of Bloom due to the additional recovery.
• E6 Develops the combat potential of the character and the creature by increasing the damage dealt to enemies with quantum resistance and increasing the number of hits that are triggered after the disappearance of the spirit of memory. Moreover, the dragon now ignores any vulnerabilities.

If you are a F2P player but want to get copies of the unit, it is recommended to stop at the second eidolon.

How to play as Kastoria

Kastoria's rotation is built around constantly summoning the spirit of memory and then using it to destroy enemies. At the same time, the character is also able to inflict damage with a normal or enhanced skill. However, this skill reduces the health of allies, which may require more involvement in the battle.

No less important is the process of restoring the superpower, due to which the dragon Wings of Death appears: special stacks of the charge "New Bloom" are required. But while the spirit of memory is in the arena, energy is not given. That is, it will not be possible to activate the ultimate immediately after the assistant disappears, and you will have to spend time on this.

Since the girl consumes the HP of her teammates, her skill is not the only relevant way of regeneration, especially in difficult battles. An additional and more "safe" option is the healing received by the squad (the first trace). However, for this it is important to ensure that the team has a healer who can heal often and consistently.

Taking into the above features, adhere to the following recommendations in rotation:

1. Before the start, use the technique so that the spirit of memory of Death Wings immediately appears at the beginning. Thanks to this, the buff from the second assistant talent will also automatically work in the form of increasing the damage of allies for 3 turns.
2. While the spirit of memory is active, alternate abilities with Kastoria. However, before using the heroine's skill, pay attention to the current health of your partners and the moves of enemies, especially elite ones.
3. When the spirit of memory goes down 3 times or uses up HP, it will disappear. This also unlocks the character's superpower, as well as the ability to restore energy with a skill, loss or regeneration of health.
4. The ultimate activates when ready to summon Deathwings again. To speed up the process, active healing from a healer (ideally ive as well) and/or an action progression mechanic is required. In the latter case, make sure it does not become critical to the team's survivability.
5. We should also note a special talent that allows you to avoid the death of allies. This is a kind of second "chance" if for some reason you failed to keep track of the group's health. However, the ive only works once per battle, which is why it is better not to waste it in vain and strive to preserve HP as much as possible.

Let's highlight the moment with the use of the dragon's skill:

• Enhanced Memory Spirit Skill (E) reduces health, but does not count as a move. Therefore, you can not use up the stock completely, leaving about 25% (3 clicks; or less if HP is not full), and then complete the action with a normal skill (Q).
• If there is no need for a powerful attack (for example, when there are several small enemies on the field), the maximum number of presses of the Death Wings skill for complete exhaustion is done on the last turn before it disappears, when the 3 circles under the unit icon are empty.

There is also an option not to keep the dragon in the arena for a long time, but to spend it right away all health skill to deal high damage to a large target in one go. However, it is important to keep in mind that in this case you will have to do without it for several turns.

Thus, the spirit of memory can be controlled in different ways: to make an instant explosion through the full consumption of HP or to try to the dragon on the battlefield. Let's take a closer look at both styles of play.

HP drain for instant explosion	for Deathwings in the arena
Suitable for a hyper-carry build, where the girl is the only damage dealer.	Not a bad option if there is another DPS character in the team.
Received healing is always converted to Ultimate Restoration only.	The explosive attack is triggered less frequently, reducing damage to single targets.
Maximum damage to one enemy thanks to talent and third trace.	It's easier to clear out waves of smaller enemies, like in Pure Fiction.
If the squad lacks healing, the Deathwings may be absent from the fight for a long time.	Not available in auto-battle and is harder to adjust to rotation with Sunday.
The boost from the superpower does not work on a permanent basis.	The reduction of all types of enemy resistance from the ult works more consistently.

Which Path to Choose for ing the Universe

The Main Path is Memory, since the blessings in this case are aimed at strengthening the summoned creature, the main source of the character's damage. Additional Path - Destruction, as it is related to the mechanics of health consumption and restoration. In addition, the blessings of Hunting, Harmony, Propagation, and Erudition are suitable for composing equations.

Basic equations:

Most of the damage is dealt by the Flower of Annihilation from the "Elegy Priest". Considering that the HP of the party constantly changes due to the unit's skills, the effect will activate stably.

Additional equations:

Among weighed curiosities it is necessary to choose those that best combine with the heroine's features. For example, they increase key characteristics during combat, are associated with the spirit of memory or loss/regeneration of health. In this regard, the following are optimal:

Alternatively, Death of Altruism will also work well if you're playing with Mideem (Destruction: Imaginary)In cases where there are no problems with survival, "Overfeeding" can be abandoned.

All about character leveling

What resources and in what quantities are needed to achieve maximum development.

Elevation materials

Leveling up to level 80 will require the following components:

Skills Improvement Materials

Everything you need to enhance your skills:

The order of opening traces

Hidden skills can be improved using the following materials:

In total, to fully upgrade Kastoria, including elevation, skills and traces, you need to collect:

• loans (×3 888 000);
• traveler's guide (×290);
• ominous omen (×56), echo of crying (×71), endless sorrow (×73);
• seed of thought (×18), sprout of awareness (×69), bud of consciousness (×139);
• dim moonlight (×65);
• soul feathers (×12);
• imprint of fate (×8).

Advantages and disadvantages

Having studied the gameplay features of the unit and its summoned creature, we can draw conclusions about the “pros” and “cons”:

Advantages	Disadvantages
Decent area and single target DPS allows the heroine to be used to complete a variety of content.	Damage and energy depend on the health of the squad : HP decreases => damage increases and the ult is charged.
Relatively simple build in of selecting characteristics: it is enough to focus on HP and critical values.	Doesn't work well without an Abundance character who can provide consistent healing, including ive healing off-turn.
Does not consume skill points when using a skill, allowing characters to apply buffs more often.	A small number of synergies with other units that would allow the girl to fully realize herself in the group.
Plays as a hyper-carry or with other damage dealers if they play from HP and are able to manipulate health.	The limited selection of light cones in the Path of Memory makes the character somewhat dependent on his signature weapon.
The damage increases for the Spirit of Memory combined with the from the s make it a powerful unit.	Limited energy generation options. Also, the ult does not charge when the Spirit of Memory is active.
Has a unique ive talent that delays the death of allies if the heroine is on the player's .	Not very comfortable for auto-battle due to constant HP consumption, as well as the mechanics of the Spirit of Memory skill. When auto-playing, Death Wings always completely spend their health.
Offers buffs: by reducing the penetration of all types of resistance, it allows you to deal more damage to enemies if they have a vulnerability to the elements of heroes in the group, and increases overall damage.

Best Kastoria Builds in Honkai: Star Rail

In combat, the character acts as the main damage dealer, whose skills depend on HP, which makes the indicator key when selecting equipment. It is equally important in the Kastoria build to acquire combat stats in the form of critical damage / critical chance and a bonus to the quantum type, since dealing damage together with the spirit of memory is the main task.

If we talk about speed, it is not considered a priority, at least because the heroine during the battle already accelerates it after or uses the mechanics of advancement from s. In addition set "Rhapsodist Singing Elegies" is the most optimal set of relics where speed is not needed.

Energy recovery, in turn, is also not required. The scale is filled with stacks, which are given for reducing the health of the squad. In addition, the superpower is charged from the healing received by allies, provided that the first trace is unlocked.

Recommended Specs

Upper parameters:

Head	HP (constant)
Arms	Attack Power (Permanent)
Body	Crit. Damage > Crit. Chance/HP
Legs	HP
planar sphere	HP > Quantum Damage
Connecting rope	HP

Sub-stats:

Crit. Damage and Crit. Chance > HP(%) > Status Resistance and Defense

Optimal values ​​of characteristics when reaching the maximum level of a unit:

• HP (health) - from 7-000 units.
• speed - up to 95 units (in battle with an active second track - about 133 units and 125 units with set "Rhapsodist Singing Elegies").
• Crit. chance - about 48-68% (before the fight with "Rhapsode"); 80-100% (during the fight with "Rhapsode"). In other cases, just strive to have the mark closer to 80% before the fight.
• Critical damage - from 160-200%
• protection - from 700 units.

Light Cone Rating

Weapons for Kastoria require HP, critical values, and other bonuses that allow for more damage. While the signal is undoubtedly the preferred option, there are several alternatives.

What relics and decorations are needed

Relics, like weapons, should have ive effects that will enhance her combat capabilities and the spirit of memory respectively.

cave relics

planar decorations

Squad Guide for Kastoria in HSR

In the team, Kastoria takes the role of the main damage dealer, but at the same time she can be placed with other DPS characters if they scale from HP and consume/restore health, as this will allow you to get more stacks.

The most important thing is to take care of the presence of a with frequent and stable healing due to the fact that the heroine constantly consumes HP. For the same reason The Path of Preservation is not consideredThe rest of the should ideally offer general buffs, including for the Spirit of Memory.

Which characters are suitable?

s (Harmony, Oblivion and Memory) that are great for the heroine:

Suitable healers that can keep the team alive:

Damage dealers with whom the heroine can effectively play in the same lineup:

Examples of the best teams

The tables below show the best units with Kastoria of different rarities, including epic and free units for F2P players and newbies.

Which to choose: Tribby, Sunday or Memory Trailblazer

Kastoria has several characters that are best suited for her: Tribby, Sunday, and Memory. However, the question may arise: which of them is the best fit?

First, let's look at the heroes individually:

• Tribby (Harmony: Quantum). Convenient because her skills depend on HP, so she has a lot of health that can be spent. At the same time, she offers universal buffs that directly increase damage. She herself does good damage and benefits from damage dealers who deal damage to multiple targets.
• Sunday (Harmony: Imaginary). A strong for units with memory spirits, as it advances actions and significantly strengthens both. However, despite the beneficial bonuses, it has a number of "nuances": energy restoration is not needed by Kastoria, as is the superpower in general of little use if the Death Wings are not on the battlefield.
• Pioneer (Memory: Ice). A free alternative to Resurrection, which at the same time has its own advantages: summons a spirit of memory with its own separate health pool, allows for additional true damage, does not require special ability synchronization.

Thus, the following priority is built according to ease of use: Tribby > Pioneer of Memory ≥ SundayHowever, this does not mean that, being the last on the list, the character shows himself poorly in a squad with Kastoria.

Sunday is a powerful and is on par with Pathfinder in of effectiveness. His biggest problem is that he is more demanding when activating his ultimate, as well as the skill that makes the Spirit of Memory disappear faster.

Is it worth knocking out Kastoria?

Kastoria is the main damage dealer, playing from the summoning of the spirit of memory. She is quite strong, but at the same time difficult to implement character. Consuming health of allies coupled with the mechanics of the skill of the summoned creature require constant involvement in the battle and careful consideration of actions.

However, a special approach to battle is not the only aspect that must be faced. In particular, the girl has a small selection of s and suitable equipment. The signature cone remains the most relevant choice, which actually has no alternatives. All this makes the heroine not the most comfortable option, especially in the presence of other pumped attacking units.

However, the above-mentioned "minuses" can be compensated for if you take into all the nuances of rotation, select the right equipment and team. In this case, she will become a truly powerful combat unit and will be able to easily close the endgame content available in the game. In addition, the heroine's build itself is quite simple - for high damage numbers, only crits and HP are needed.

Thus, Kastoria is worth knocking out if you are ready to invest in the character, delve into its mechanics and actively use them in battle. At the same time, it is impossible not to highlight the unique talent, which, for having a girl on the , allows you to "postpone" the death of allies. Although this effect only works once per battle, it can become a useful function, giving additional survivability in any composition.

Which is better: signal or E1

signature cone "May the farewell be beautiful" is more preferable than the first eidolon. The weapon increases health, from which the character's skills are scaled, allows you to ignore enemy defense, positively affecting DPS, and also advances the action after the disappearance of the spirit of memory, thanks to which it will be faster to summon it again.

Additionally, the signal is one of the few options available, making it a really good buy. E1 is not worth the investment unless you are aiming for E2. Eidolon only affects the damage dealt by Deathwings and the heroine if the enemy HP is reduced to a certain value. Although the damage increase is high, it does not compare to the benefits that the cone offers.

We hope our article helped you put together the best build for Kastoria and figure out how to play her in Honkai: Star Rail. In comments leave any questions related to the character so that the author or other players can help. In the special section, see other builds.