What is the best Light Cone for Sunday?

Flowing Nightglow is the closest fit on the data: it is a 5-star Harmony Light Cone with 635 base ATK at level 80, and its passive acts on ATK. Carve the Moon, Weave the Clouds is the best 4-star alternative.

Which relic set should Sunday use?

Wastelander of Banditry Desert. Its 2-piece bonus is: Increases Imaginary DMG by 10%. Its 4-piece bonus is: When dealing DMG to debuffed enemy targets, the wearer has their CRIT Rate increased by 10%. And when they deal DMG to Imprisoned enemy targets, their CRIT DMG increases by 20%.

Which Planar Ornament should Sunday use?

Sprightly Vonwacq. Its 2-piece bonus is: Increases the wearer's Energy Regeneration Rate by 5%. When the wearer's SPD reaches 120 or higher, the wearer's action is Advanced Forward by 40% immediately upon entering battle. Planar Ornaments have no 4-piece bonus; the sphere and the rope are the whole set.

Sunday, Imaginary Harmony character | Honkai: Star Rail

All characters

Penacony

Sunday Build

Build guide · Honkai: Star Rail

ImaginaryHarmonySupport

English voice: Griffin Puatu

The best Sunday build in Honkai: Star Rail (Version 4.6) is A Grounded Ascent with Sacerdos' Relived Ordeal. Updated November 5, 2026

Abilities Traces Materials Eidolons

Where these rankings come fromThe light cone order, relic sets and stat priorities on this tab are prydwen.gg’s, measured in play and rephrased. Relative damage figures are ratios against the bottom of each ranking, not absolute numbers, and each one holds only for the superimposition and team its row states. Everything else (base stats, passive text, material totals) is read from the game’s own data.

Light cones

4 ranked

A Grounded Ascent, 5★ Harmony Light Cone | Honkai: Star Rail

BISA Grounded Ascent

Ranked first at S1

476

Base ATK · lv 80

1164 HP529 DEF

But the Battle Isn't Over, 5★ Harmony Light Cone | Honkai: Star Rail

#2But the Battle Isn't Over

Ranked #2 at S1

529

Base ATK · lv 80

1164 HP463 DEF

Past and Future, 4★ Harmony Light Cone | Honkai: Star Rail

#3Past and Future

Ranked #3 at S5

423

Base ATK · lv 80

953 HP397 DEF

Dance! Dance! Dance!, 4★ Harmony Light Cone | Honkai: Star Rail

#4Dance! Dance! Dance!

Ranked #4 at S5

423

Base ATK · lv 80

953 HP397 DEF

Relics

3 sets

CoreSacerdos' Relived Ordeal

Best set for Sunday's most common build (-1 Speed) and a huge asset to your carry. Aim to get this set if possible unless playing Hyperspeed.

2PCIncreases SPD by 6%.

4PCWhen using Skill or Ultimate on one ally target, increases the ability target's CRIT DMG by 18%, lasting for 2 turn(s). This effect can stack up to 2 time(s).

Also works

Planar ornaments

Sphere and rope · 2-piece only

CoreLushaka, the Sunken Seas

Top option for Supporting a single ATK-scaling DPS, and for its Energy Regen.

2PCIncreases the wearer's Energy Regeneration Rate by 5%. If the wearer is not the first character in the team lineup, then increases the ATK of the first character in the team lineup by 12%.

Also works

Main stats

Ultimate · 130 energy

Body: CRIT DMG
Feet: Speed
Planar Sphere: HP% = DEF%
Link Rope: Energy Regen Rate

Substat priority

Highest first

1SPD (Until desired speed build)Best
2CRIT DMG
3EFF RES%
4DEF% = HP%

Trace priority

Level in this order

#1
Skill = Ultimate = Talent
Max first
#2
Basic
Then

Major traces, best first: Rest Day's Longing (A2) > Exalted Sweep (A4) > Haven in Palm (A6)

Best Eidolons

E3 and E5 raise levels only

E1Millennium's Quietus
E2Faith Outstrips Frailty
E3Level bump
E4Sculpture's Preamble
E5Level bump
E6Dawn of Sidereal Cacophony

E1
Millennium's Quietus
Game text
When Sunday uses Skill, the target character can ignore 16% of enemy target's DEF to deal DMG and their summon can ignore 40% of enemy target's DEF to deal DMG, lasting for 2 turn(s).
E2
Faith Outstrips Frailty
Game text
After the first use of Ultimate, recovers 2 Skill Point(s). The DMG dealt by "The Beatified" increases by 30%.
E4
Sculpture's Preamble
Game text
When the turn starts, regenerates 8 Energy.
E6
Dawn of Sidereal Cacophony
Game text
The Talent's CRIT Rate boost effect becomes stackable up to 3 time(s), and the Talent's duration increases by 1 turn(s). When Sunday uses Ultimate, can also apply the Talent's CRIT Rate boost effect to the target. When the Talent's CRIT Rate boost takes effect and the target's CRIT Rate exceeds 100%, every 1% of excess CRIT Rate increases CRIT DMG by 2%.

Teams

20 teams

Aglaea team

Lightning · RemembrancePlays Action advance

A Remembrance carry whose memosprite takes the turns, with two Harmony units feeding it action advance and a healer covering the HP it costs.

AglaeaMain DPS
Sunday, this characterAction advance
TribbieHarmony buffer
HuohuoSustain

Mydei team

Imaginary · HP scalingPlays Action advance

Mydei spends his own HP to attack, which turns a healer from a safety net into the thing that keeps the rotation running.

MydeiMain DPS
TribbieHarmony buffer
Sunday, this characterAction advance
HyacineSustain

Himeko • Nova team

Fire · EruditionPlays Action advance

Her Talent hands every ally an Assist Skill that calls her Starblazer, so the other three slots are chosen for how often they take a turn.

Himeko • NovaMain DPS
Sunday, this characterAction advance
Ruan MeiHarmony buffer
LingshaSustain

Evernight team

Ice · RemembrancePlays Action advance

Evernight and her memosprite both scale on Max HP and both pay HP to hit harder, so the healer is load-bearing and the buffs go to memosprite CRIT DMG.

EvernightMain DPS
CyreneRemembrance support
Sunday, this characterAction advance
HyacineSustain

Jing Yuan team

Lightning · EruditionPlays Action advance

His Lightning-Lord attacks on its own turn and its damage scales with stacks, so the team is built to give him turns rather than multipliers.

Jing YuanMain DPS
Sunday, this characterAction advance
TingyunEnergy · ATK
AventurineSustain

Argenti team

Physical · EruditionPlays Action advance

His 180-energy Ultimate is the whole kit, so every other slot is chosen for how much Energy it returns rather than how much damage it adds.

ArgentiMain DPS
Sunday, this characterAction advance
Ruan MeiHarmony buffer
HuohuoEnergy · Sustain

See all 20 on best teams

Honkai: Star Rail 5★ Imaginary Harmony Support

Sunday build summary

Updated November 5, 2026

A Grounded Ascent tops the light cone ranking for Sunday at S1, ahead of But the Battle Isn't Over, Past and Future and Dance! Dance! Dance!. That order is prydwen.gg's, measured in play and rephrased here; every row of it sits under Light cones below.

Run Sacerdos' Relived Ordeal on Sunday, with Messenger Traversing Hackerspace and Eagle of Twilight Line behind it. The planar ornament is Lushaka, the Sunken Seas. Main stats are CRIT DMG body, Speed feet, HP% = DEF% sphere, Energy Regen Rate rope. Roll substats in the order SPD (Until desired speed build) > CRIT DMG > EFF RES% > DEF% = HP%.

Trace priority is Skill = Ultimate = Talent > Basic. The Ultimate costs 130 energy, which is what an Energy Regeneration Rate target has to clear.

Sunday plays Action advance in the Aglaea team, alongside Aglaea, Tribbie and Huohuo.

Role: Support
Best light cone: A Grounded Ascent
Alternatives: But the Battle Isn't Over, Past and Future, Dance! Dance! Dance!
Relic set: Sacerdos' Relived Ordeal
Planar ornament: Lushaka, the Sunken Seas
Main stats: CRIT DMG body, Speed feet, HP% = DEF% sphere, Energy Regen Rate rope
Substat priority: SPD (Until desired speed build) > CRIT DMG > EFF RES% > DEF% = HP%
Trace priority: Skill = Ultimate = Talent > Basic
Best team: Aglaea, Sunday, Tribbie, Huohuo
Ultimate energy cost: 130 energy
Key ascension material: 65× Chordal Mirage
Last updated: November 5, 2026

Sunday build FAQ

What is the best Light Cone for Sunday?: Flowing Nightglow is the closest fit on the data: it is a 5-star Harmony Light Cone with 635 base ATK at level 80, and its passive acts on ATK. Carve the Moon, Weave the Clouds is the best 4-star alternative.
Which relic set should Sunday use?: Wastelander of Banditry Desert. Its 2-piece bonus is: Increases Imaginary DMG by 10%. Its 4-piece bonus is: When dealing DMG to debuffed enemy targets, the wearer has their CRIT Rate increased by 10%. And when they deal DMG to Imprisoned enemy targets, their CRIT DMG increases by 20%.
Which Planar Ornament should Sunday use?: Sprightly Vonwacq. Its 2-piece bonus is: Increases the wearer's Energy Regeneration Rate by 5%. When the wearer's SPD reaches 120 or higher, the wearer's action is Advanced Forward by 40% immediately upon entering battle. Planar Ornaments have no 4-piece bonus; the sphere and the rope are the whole set.

Sunday Build

Light cones

Relics

Planar ornaments

Main stats

Substat priority

Trace priority

Best Eidolons

Millennium's Quietus

Faith Outstrips Frailty

Sculpture's Preamble

Dawn of Sidereal Cacophony

Teams

Sunday build FAQ