Sunday in Honkai Star Rail: Build Guide and Best Squads

Sunday in HSR follows the Path of Harmony and uses the imaginary element. His main functions as a support are to distribute positive bonuses and restore skill points through the use of a basic attack while the buffs are active and do not require refreshing.

The unit's gameplay is built on supporting one ally (and their summon). The general list of buffs is focused on increasing crit chance and crit damage, as well as DPS. This results in a limited list of light cones and relics that can additionally buff the character himself.

Sunday's specialty is status "The Beatified", coming from the ultimate skill, as a result, the superpower is of primary importance in comparison with other skills both in terms of leveling and in battle. This "advantage" should be taken into account when selecting the most effective squad, where the unit will be able to reveal itself without any problems.

How to Get the Character

Sunday can be obtained in the Event Warp: Character banner, which is called "Eyes to the Stars". The event is available July 2, 2025 to July 23, 2025.

Bookmark our banner schedule with up-to-date information on current and future Event Warps: Character and Event Warps: Light Cone so you don't miss Sunday's rerun.

How skills work

As a Harmony unit that takes an active support position, he mainly cooperates with DPS characters who can summon creatures to the battlefieldand act as a separate combat unit (for example, demigoddess Aglaeaand her "Seamstress" General Jing Yuan and his "Lightning Lord" etc.). Bonuses that the hero offers:

• Technique enhancement - increases damage;
• skill - advances the action and increases damage;
• superpower - restores energy and imposes a bonus to increase critical damage;
• talent - imposes a bonus to the increase in critical chance.

The spread effects will also work for most characters following the Paths of Destruction, Erudition, the Hunt, and Nihility (being the team's main DPS), even if they don't have the mechanics of summoning creatures or memosprites.

Active skills

Let's look at the main skills, which include technique, basic attack, skill and super ability.

Passive Skills

Passive skills include talents that offer an additional bonus when the skill is activated.

Leveling Order

Skill = Super Ability ≥ Talent > Basic Attack

The most important abilities are considered to be skill and ult, which strengthen the ally and his summoned creature on the battlefield. Accordingly, improving these abilities to the maximum level should be a priority. Next is the talent, which offers a steady increase to the critical chance indicator important for many DPS representatives.

Basic attack, as for a character of the Path of Harmony, is not significant and is used exclusively to restore skill points while the main statuses are active. As a result, it can either be ignored or improved after the abilities listed above have been upgraded.

Traces

All traces of the unit:

The total increase in characteristics is as follows:

• crit bonus +37.3%
• effect res +18.0%
• defense +12.5%

Eidolons

All hero consts:

The best eidolons of Sunday are the first and sixth ones:

• E1 Increases the damage dealt by an allied hero and their summon by allowing them to ignore defense, which is a critical benefit when playing high-level content.
• E6 significantly increases the bonus offered by the talent (side-effect boost to a DPS unit by increasing its combat stats). As a result, Sunday's potential as a representative of the Path of Harmony is expanded.

Additionally, you can consider the second eidolon, offering a recovery of skills during combat (once upon the first use of the ultimate skill) and a third-party bonus to overall damage when "The Beatified" status is active. This constellation will be a good acquisition, however, against the background of the first and sixth const will not show explicit increase in numbers.

F2P players looking for Eidolons are advised to stick with the first constellation. Then pay attention to the character's signature light cone.

How to play Sunday

During the battle, the hero strives to constantly maintain active main positive increases on the selected ally. His buffs are active for the following number of turns:

1. With the technique - 2 ally turns.
2. From skill - 2 ally turns.
3. From talent (activated by skill) - 3 ally turns.
4. From the ultimate ability - 3 hero turns.

Technique and skill

The unit's main buff is the "The Beatified" status, which is applied by the super ability (total energy cost - 130). The advantage is the duration of the bonus, which depends on the actions of Sunday himself, not the ally. Thanks to this feature, the partner selected for the buff will be able to stay under third-party increases for quite a long time.

Taking into account all of the above, we can record the following recommendations when constructing Sunday rotation:

• Before the fight use the technique - thus, after the first use of a skill or superpower, the ally will receive an additional boost that increases his outgoing damage.

Similarly to Wind Bronya and Quantum Sparkle, he has two styles of play - standard, where the speed is 1-3 units lower than that of the main DPS of the group, and fast, within which the damage dealer's speed remains as it is, and the support's speed is 160+.

Further behavior in battle directly depends on this:

• Standard: Perform an action after the main DPS hero to advance them and allow them to take action twice.
• Fast: advancement immediately at the beginning of the battle with a skill. Due to the high speed indicator, within one cycle the character performs a repeated action and thus "pulls" the partner along.

The advantage of the fast style of play is revealed in the fact that instead of boots on "speed" the damage dealer equips boots with "attack power" (or another necessary stat), which directly affects the damage.

Ultimate

Ultimate is the main skill, with proper investments in energy it can be maintained constantly. The advantage of the skill is not only in the increase to the critical indicator, but also in the restoration of energy. However, it is important that the last boost does not go to the filled "bank" of the ally.

As a result, it is necessary to monitor the following moment: if the super ability is ready, but the bonus from it is still active, hold the skill. If the status update is not required, use the ultimate when the ally begins to need energy.

Strengths and Weaknesses

Taking into account the mechanics of Sunday's abilities and features, we can draw a conclusion about his positive and negative sides:

All about leveling

Here are the resources needed to fully strengthen your character:

In total, the hero needs the following amount of materials:

• Credits (×3 888 000);
• Traveler's Guide (×290);
• Fragments of Impression (×56), Shards of Desires (×71), Chordal Mirage (×73) - drops after killing "Memory Zone Memes";
• Firmament Note (×18), Celestial Section (×69), Heavenly Melody (×139) - is given as a reward for completing the activity "Calyx", located in The Reverie (Dreamscape). Additionally created and synthesized through "The Omni-Synthesizer";
• Chordal Mirage (×65) — a reward for completing " Stagnant Shadow: Shape of Timbre", located in Penacony Grand Theatre;
• Lost Echo of the Shared Wish (×12) - rewarded for defeating "Harmonious Choir" The Great Septimus, which can be found in the dungeon "Echo of War:Salutations of Ashen Dreams" in Penacony Grand Theater;
• Traces of Destiny (×8).

Sunday's Best Builds in Honkai: Star Rail

Sunday is a unique hero of the Path of Harmony. He primarily acts as a support for characters who can summon special creatures to the battlefield that have personal actions in the battle cycle. However, due to the presence of universal buffs, he will also be in demand among representatives of other Paths. Dwelling on the characteristics in more detail, it is worth noting that Sunday's build in HSR is based on gaining the following stats:

• CRIT DMG — the main stat on which the effectiveness of the bonus from the superpower depends;
• energy recovery rate - to quickly accumulate energy for activating the ultimate skill;
• speed - as an opportunity to increase the character’s actions in the battle cycle;
• additionally: characteristics that affect survivability (health, defense, resistance to effects).

In turn, dealing damage is not a priority for Sunday: within the rotation, he must constantly apply bonuses, only occasionally being distracted by using a basic attack for the third-party restoration of skill points. For this reason, combat stats, other than crit. damage, are not required.

Recommended Stats

The main parameters to look for in artifacts are:

Extra options:

Speed ​​(until reaching the desired value) > Crit. Damage > Effect Resistance > HP = Defense

Optimal stat values ​​for a level 80 Sunday:

1. CRIT DMG: 180% and more.
2. Energy recovery rate: 119,4% and more
3. Speed: 1 unit less than the speed of the main DPS unit, or 160+ units (while the speed of the main DPS unit remains at the base level);
4. HP (HP): 4 – 000.
5. DEF: 1+.

Light Cone Rating

When choosing a weapon, it is important to remember that it must belong to the Path of Harmony. Otherwise, the character will only receive increases to basic characteristics, but will not be able to use the passive skill "cards".

The best option would be the Sunday signature light cone A Grounded Ascent, as it covers the basic needs of the character. However, there are many alternatives among the legendary and epic options.

Light cone	Effect	Recommendation
A Grounded Ascent ⭐⭐⭐⭐⭐ HP: 52-1 164 ATK 21-529 DEF 24-476	After the owner uses a skill or super ability on an ally, they recover 6-8 energy, and their target gains the Hymn status for 3 turns. This effect can stack up to 3 times. Each level of the Hymn status increases the damage dealt by 15-24%. For every 2 Using a skill or super ability on an ally restores 1 skill point for the squad.	A signature ability that covers the main need of the character, tied to the "energy recovery speed" indicator: thanks to the light cone and an ER link rope, the character will be able to "charge" the ultimate in 3 turns. In addition, increases damage dealt by the main damage dealer by 45-72% at max level of the Anthem effect.
But the Battle Isn't Over ⭐⭐⭐⭐⭐ HP: 52-1 164 ATK 24-529 DEF 21-463	Energy recovery rate increases by 10-18%. When the owner uses a super ability on an ally, he will recover 1 skill point. This effect can only occur once for every two uses of the super ability. After the owner of the skill uses the damage of an ally performing an action behind him, the damage increases by 30-50% for 1 turn.	A good alternative to the legendary type for energy restoration and additional damage boost. However, in total it is significantly inferior to signature weapons up to at least level 3 of «superimposition».
Earthly Escapade ⭐⭐⭐⭐⭐ HP: 52-1 164 ATK 24-529 DEF 21-463	Critical damage is increased by 32-60%. At the beginning of the battle, the owner receives the "Mask" status for 3 turns. While the owner is under the influence of this effect, the critical chance of his allies increases by 10-14%, and their crit. damage - by 28-56%. Each time the wearer recovers 1 skill point (including exceeding the max skill points), he gains 1 level of the "Radiant Flame" status. When the number of levels of this effect rises to 4, the wearer loses all levels of the named bonus and gains the "Mask" status for 4 turns.	A weapon that increases the crit bonus of the wearer, and additionally offers third-party bonuses to allies. Since the hero is able to restore skill points with the skill, there will be no special problems with activating the second part of the passive effect of the weapon "card".
Past and Future ⭐⭐⭐⭐ HP 43-952 ATK 19-423 DEF 18-396	After the owner of the skill uses the damage of an ally performing an action behind him, the damage increases by 16-32% on 1 move	Epic analogue of the legendary cone "But The battle is not over": has a similar bonus, which is quite easy to implement due to the peculiarity of the character's skill.
Carve the Moon, Weave the Clouds ⭐⭐⭐⭐ HP 43-952 ATK 21-476 DEF 15-330	At the beginning of the battle, as well as at the beginning of the owner's turn, 1 random effect from the following is triggered: The attack power of all allies increases by 10-20%; Critical damage of all allies is increased by 12-24%; The energy recovery rate of all allies increases by 6-12%. The bonus replaces the previous effect and cannot be the same as the previous effect. Boosts of this type cannot stack and are removed when the hero who is equipped with the cone of light becomes unable to fight.	Light Cone for lvl 30 of the Nameless Honor (improved version). Provides random buffs that change during the battle. Suitable for teams where the damager equally needs all three offered stats: attack power, energy recovery, crit dmg.

Additionally, the following "cards" can be equipped:

• Planetary Rendezvous (epic) - situational, but quite a strong option if the passive effect condition is met (the team's main damage dealer must have a damage type like Sunday's, i.e. an imaginary element).
• "Dance! Dance! Dance! (epic) - not a bad option for a "fast" build. However, with a speed of "-1" from the main damage dealer, problems with rotation may arise if you do not calculate the actions more carefully.
• Chorus и Meshing Cogs (rare) - accessible cones for the early stage of the game due to the fact that it's easy to reach the 5th level of superimposition. Later, they require replacement with weapons with more powerful and stable enhancements.

What relics and ornaments are needed

Artifacts should primarily contain an increase to critical damage in the main (body only) and additional parameters, since the effectiveness of the bonus distributed by the "The Beatified" status depends on the specified characteristic. Otherwise, any parameters for survivability will do.

Cavern relics

Let's take a look at the best cavern relic sets and acceptable 2x2 mixes:

The set is	Effect	Recommendation
Sacerdos' Relived Ordeal	2 parts: Increases speed by 6%. 4 parts: Using a skill or super ability on an ally increases the skill target's crit damage by 18% for 2 turns. This effect can stack up to 2 times.	The ultimate Cavern Relic set that fits Sunday's mechanics and needs. Increases the wearer's speed, and also offers an additional buff to the ally in the form of a crit damage bonus that will be maintained on a permanent basis.
Sacerdos' Relived Ordeal Messenger Traversing Hackerspace // Musketeer of Wild Wheat	2 parts: Increases speed by 6%. 2 parts: Increases speed by 6%.	A 2x2 combination aimed at accelerating the character. A great option if you want to gain 160+ speed.
Messenger Traversing Hackerspace	2 parts: Increases speed by 6%. 4 parts: Increases the Speed ​​of all allies by 12% when the owner uses a super ability on an ally for 1 turn. This effect does not stack.	An alternative gear option that can be used if the team needs an additional boost to speed. If the set is placed in a "slower" build, the third-party growth from the 4 pieces should be taken into account so that it does not ruin the rotation.
Eagle of Twilight Line	2 parts: Increases wind damage by 10%. 4 parts: After using the ult, the action advances by 25%.	The set is a good option for many supports. Allows you to perform an action more often and, as a result, use the super ability more often. An ideal choice for a "fast" build.

Planar ornaments

Here are some examples of acceptable equipment options that can be obtained during the game. "Simulated" and Divergent Universe:

The set is	Effect	Recommendation
Lushaka, the Sunken Seas	2 parts: Increases energy recovery speed by 5%. If the owner is not in first place in the party, the attack power of the character in first place in the party increases by 12%.	An attractive ornament set option that can be used in combination with damage dealers of any element. In order to effectively use the bonus, you need to put the main DD in the first place in the team, and the unit in a free slot.
Penacony, Land of the Dreams	2 parts: Increases energy recovery rate by 5%. Increases damage dealt by allies of the same type as the owner by 10%.	An alternative equipment option, not inferior to the Lushaka, the Sunken Seas set. Suitable if the main damage dealer of the squad has the same type of damage as the hero (i.e. imaginary element).
Broken keel	2 parts: Increases status resistance by 10%. If the wearer's status resistance is greater than or equal to 30%, the crit. All allies' damage is increased by 10%.	A support set that increases survivability by increasing status resistance. Provided that this stat reaches 30%, it buffs the team's critical damage. Leveling up the traces gives the character 18%, the equipment of the set offers another 10%. To implement the effect of 2 parts, it remains to get an insignificant 2% of Effect Res, which is achieved thanks to additional stats in artifacts.
Fleet of the Ageless	2 parts: Increases Max HP by 12%. If the owner's Speed ​​is greater than or equal to 120, the attack power of all allies increases by an additional 8%.	Universal set. Permanently increases health, and when gaining speed to a minimum of 120, increases the attack power of allies. In terms of efficiency, it is not inferior to "Broken Keel", although it increases other indicators.

In addition, it is worth highlighting the set Sprightly Vonwacq. It will only be useful in the case of a fast build, to perform more actions within the first cycle. In a build where the young man walks slower than the main DPS hero, the set will most likely cause more harm, since it knocks down the initial speed settings.

Team Guide for Sunday in HSR

In the team, Sunday plays the role of a support character. Among his bonuses, you can find increases to crit. chance and crit. damage, as well as an increase in outgoing DPS.

Mainly plays in tandem with characters that summon combat creatures to the arena. The young man strengthens them, as well as the "master", which increases the overall effectiveness of the ally within the battle. However, if desired, he can be considered in the role of additional suppport for other damage dealers.

Which characters are suitable?

Let's look at the main heroes - with them, Sunday has maximum potential as a unit of the Path of Harmony:

Character	Path and type of damage	Features
Aglaea	Remembrance Lightning	Summons the Seamstress to the battlefield: she has a personal icon within the action scale, a set of her own active skills, and can also be healed, protected, and attacked from the outside. Mainly plays from the superpower: in the Supreme Stance state, she gets wild increases in speed and transforms the basic attack into an enhanced one. In general, she is focused not only on single enemy targets, but is also capable of inflicting mass damage.
Castorice	Remembrance Quantum	During the battle, the girl relies on a summoned creature, which makes the young man an excellent partner for her. However, there are a number of features that are important to consider in their joint play: Castorice does not need energy recovery, since she charges the ult by consuming the HP of allies, and Sunday's super ability is best used when the heroine's memosprite is on the battlefield to increase his critical. damage.
The Trailblazer	Remembrance Ice	Together with Memo, it not only attacks opponents, but also provides allies with third-party bonuses that increase critical. indicators. It can heal, but at the same time it does not always cope with the role of the only support during the passage of high-level content. The main feature is considered to be true type damage, and it is realized through joint strikes with the memosprite.
Hyacine	Remembrance Wind	A hybrid character that combines the mechanics of a healer and a damage dealer. At the same time, she is able to increase the max. amount of health of her partners and stably remove debuffs from them. Her memosprite deals good damage, depending on the amount of HP restored from the heroine herself and the creature, which allows for a decent acceleration of DPS.
Topaz and Numby	The Hunt Fire	Summons Numby the Piggy onto the battlefield, and its attacks are considered a bonus attack. With the super ability, enhances the creature, increasing its damage multiplier, crit rate, and also advancing the action by 25%.
Jing Yuan	Erudition Lightning	Summons the Lightning Lord to the battlefield, who deals up to 10 hits during his personal turn. The number of hits, in turn, accumulates when Jing Yuan uses a technique (+3), skill (+1), and ultimate skill (+3). Sunday will not only speed up the accumulation of hits to the max. amount by advancing actions, but also offers a number of bonuses, — They will have a positive effect on the outgoing damage of both the general and his creature.

Other DPS units

Damage dealers that the hero can support with personal skills:

1	2	3	4	5
Mydei (Destruction: Imaginary)	Phainon (Destruction: Physical)	Saber (Destruction: Wind)	Imbibitor Lunae (Destruction: Imaginary)	Yunli (Destruction: Physical)
Jingliu (Destruction: Ice)	Blade (Destruction: Wind)	Misha (Destruction: Ice)	Hook (Destruction: Fire)	Arlan (Destruction: Lightning)
Archer (The Hunt: Quantum)	Feixiao (The Hunt: Wind)	Doctor Ratio (The Hunt: Imaginary)	Seele (The Hunt: Quantum)	Sushan (The Hunt: Physical)
Dan Heng (The Hunt: Wind)	The Herta (Erudition: Ice)	Argenti (Erudition: Physical)	Anaxa (Erudition: Wind)	Qingque (Erudition: Quantum)

Best team samples

The best squads for Sunday are as follows:

Character 1	Character 2	Character 3	Character 4	Features
Aglaea	Sunday	Robin MC Remembrance	Huohuo	Robin and the Family member jointly boost the outgoing DPS of Aglaea and her memosprite, the Seamstress (thus creating a strong offensive combo with colossal burst damage of single and mass types). Huohuo, in turn, is aimed at healing and at the same time additionally restores energy.
Castorice	Sunday	Tribbie	Hyacine Gallagher	Sunday and Tribbie are strong supports for Castorice, allowing her to clear content in a minimum number of cycles. However, she is a constant drain on all party members, making it important to use healers who can consistently heal in the build.
Jing Yuan Topaz	Robin	Sunday	Aventurine Lingsha	A team designed to maximize the combat effectiveness of the main DPS character, who has the mechanics of summoning a creature and a bonus attack: Robin's " Impromptu Flourish" trace increases the attack bonus of all heroes. Sunday provides boosts to critical hits and energy, while supporting the summoned creature on the battlefield.  When choosing between units that are aimed at maintaining survivability, preference can be given to Aventurine or Lingsha.

Teams where the unit does not play a dominant role as a support, but still supports the chosen damage dealer well (without the summon mechanic):

Character 1	Character 2	Character 3	Character 4	Features
Mydei Blade	MC Remembrance Bronya	Sunday	Luocha Lynx	A squad where all positive bonuses are concentrated on Blade/Mydei. The hyper-carry gets double action progress, as well as increases to combat stats and overall damage. Additionally, he has no problems with survivability: Luocha is useful due to the field from Void Blossoms: heals every time an ally deals damage to an enemy. Lynx has good passive healing. In addition, it increases the chance of Preservation and Destruction characters to be attacked, which combines well with Blade/Mydei mechanics.
The Herta	Anaxa Jade	Sunday	Lingsha	A team with The Herta, where another Erudition character is needed, as this significantly strengthens not only her, but also the rest of the squad. The optimal addition to such a build will be a buffer/debuffer, spreading useful effects or weakening enemies.
Saber Anaxa	Robin	Sunday	Huohuo	Saber/Anaxa acts as a hyper-carry, enhancing her combat potential through strong support that can not only apply relevant buffs, but also advance the action. At the same time, generating additional energy contributes to a more consistent character rotation.
Feixiao Yunli Ratio	Robin Topaz Cipher	Sunday	Luocha	A squad with hypercarry from the bonus attack mechanic. Sunday, like Robin/Topaz/Cipher, supports the main damage dealer. Locha can be put in the healer position with a convenient passive health restoration from the "Abyssal Flower" field.
Phainon P. Moon	Sparkle Hanya	Sunday	Aventurine Fu Xuan	Party with Phainon/Dan Heng: Imbibtor Lunae: It is supported by two representatives of Harmony, who can restore skill points. Characters will be able to use skills on a permanent basis, while receiving increases to personal combat stats and DPS.
Argenti	Sunday	Tingyun Jiaoqiu	Huohuo	Argenti is a DPS character who plays off a stronger version of the superpower. For this reason, he especially needs heroes who can restore energy.  Tingyun can be replaced with Jiaoqiu, as she increases the damage taken by enemies from attack-type super abilities through the use of her ultimate.
Archer Dan Heng Sushan	Silver Wolf MC Remembrance	Sunday	Natasha Gallagher	The main feature of the team is high damage to single targets. The overall damage is increased by the supports: Silver Wolf lowers the stats of enemies and imposes a weakness to the ally's element on them, and the MC buffs critical indicators, advances the action and allows for true damage.

Is The Character Worth Pulling?

Sunday has unique effects that apply to one ally. Considered a signature/relevant support for characters such as Aglaea (Remembrance: Lightning), Castorice (Remembrance: Quantum), Jing Yuan (Erudition: Lightning) etc., as he increases the damage dealt by their creatures.

In general, the young man is quite undemanding to eidolons and signature weapons: he feels great without third-party enhancements, being equipped with an epic light cone. Although, of course, he acquires additional boosts if he receives the proper investments.

Despite the peculiarity of skills, also unlimited within the squads, being one of the most flexible and versatile characters in the game: can support many units with available enhancements. However, still primarily specializes in supporting partners with creatures/memosprites.

Therefore, it is recommended to spend Special Star Passes on the hero if:

• there are units that summon creatures, or you plan to obtain characters with the named mechanics;
• you need a universal support who can take the slot in almost any team.

Which is better: signature or E1

When answering the question of what is better to get for Sunday - the signature weapon or the first eidolon, it is worth remembering what options both options offer:

• signature cone — Restores energy points when using a skill or ultimate ability and applies a bonus to an ally that increases outgoing damage by a percentage. In addition, it offers to restore 1 skill point every second use of a skill or ultimate.
• E1 — after using the skill, the hero applies a positive bonus to the ally, which affects both him and his summoned creature. Thus, the effectiveness of ignoring the enemy's defense is increased: for the partner by 20% when dealing damage, for the summoned creature - by 40%.

Compared to the signature "card" skill, the first eidolon has only one positive effect - it increases outgoing DPS by ignoring enemy defense. Light cone, in turn, has more advantages:

1. Restores additional energy points.
2. Provides a status that increases damage.
3. Restores skill points, which solves the problem of resource shortage.

As a result, the signature will become a more attractive acquisition. However, the overall priority can be revised if there is a weapon that offers good boosts, such as an increase in crit. indicator (as an option, Earthly Escapade). In this case, it is appropriate to give preference to E1.

Trailers

After the Sunset Trailer:

Soloist Trailer:

Trailer demo "How is today only Wednesday?":