Robin Summeretto Guide and Best Builds

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Introductions

Robin • Summeretto is a 5-Star Wind character who follows the Remembrance. Robin is a supportive enabler who revolves around building 'Vibes' through frequent ally actions, before entering her powerful 'Fever' state. During Fever, Robin stops taking turns while providing massive offensive buffs, DEF Ignore, and additional damage through her Summer Songbirds.
Our Robin • Summeretto Build Guide will show you the best Light Cones, Relics, and Team Compositions to build a Robin capable of making Xipe proud!

Robin Summeretto's Best Light Cone

Listed below are the Light Cones we recommend for Robin.

Rise and Sing (S1)
113%

Increases the wearer's Max HP by 30.0 / 37.5 / 45.0 / 52.5 / 60.0%. After the wearer uses Ultimate, recovers 1 Skill Point for allies. When entering combat, advances the wearer's action by 30.0 / 32.5 / 35.0 / 37.5 / 40.0% and grants the wearer "New Melody," lasting for 2.0 turn(s). While the wearer holds "New Melody," all allies' SPD increases by 20.0 / 25.0 / 30.0 / 35.0 / 40.0%.

Robin • Summeretto's signature Light Cone. It's not a bad choice: in teams with and , it performs much better, and for SPD-scaling DMG dealers (like ) it performs even better. However, this cone is not required for most teams.

Long May Rainbows Adorn the Sky (S1)
113%

Increases the wearer's SPD by 18.0 / 21.0 / 24.0 / 27.0 / 30.0%. When the wearer uses Basic ATK, Skill, or Ultimate, consumes all allies' HP equal to 1.0 / 1.3 / 1.5 / 1.8 / 2.0% of their current HP, and after the next attack of the wearer's memosprite, enables it to additionally deal 1 instance of Additional DMG equal to 250.0 / 312.5 / 375.0 / 437.5 / 500% of the total consumed HP to the attacked target, with the damage type based on the memosprite's type. Then, the total consumed HP is reset. When the wearer's memosprite uses Memosprite Skill, increases the DMG taken by all enemies by 18.0 / 22.5 / 27.0 / 31.5 / 36.0%, lasting for 2 turn(s). Effects of the same type cannot stack.

Sources: Event Warp (limited)

Currently one of the strongest overall Light Cones for Robin; as long as she uses her Ultimate often enough it performs great, though it will not give her perfectly consistent uptime, especially with faster enemies.

This Love, Forever (S1)
106%

Increases the wearer's SPD by 18.0 / 21.0 / 24.0 / 27.0 / 30.0%. When the wearer's memosprite uses Memosprite Skill on one ally, gains "Blank," which increases DMG taken by all enemies by 10.0 / 12.0 / 14.0 / 16.0 / 18.0%. When the wearer's memosprite uses Memosprite Skill on an enemy, gains "Verse," which increases CRIT DMG of all allies by 16.0 / 19.0 / 22.0 / 25.0 / 28.0%. When the wearer's memosprite has both "Blank" and "Verse," increases the effects of both "Blank" and "Verse" by 60.0 / 65.0 / 70.0 / 75.0 / 80.0%.

A strong pick, mainly for the SPD and team-wide CRIT DMG.

Make Farewells More Beautiful (S1)
105%

Increases the wearer's Max HP by 30.0 / 37.5 / 45.0 / 52.5 / 60.0%. 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 30.0 / 35.0 / 40.0 / 45.0 / 50.0% 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 12.0 / 15.0 / 18.0 / 21.0 / 24.0%. This effect can only trigger up to 1 time, and the trigger count resets every time the wearer uses Ultimate.

Sources: Event Warp (limited)

A solid stat-stick option that grants HP%, increasing the ATK bonus she provides.

To Evernight's Stars (S1)
103%

Increases the wearer's Max HP by 30.0 / 37.5 / 45.0 / 52.5 / 60.0%. When the wearer's memosprite uses an ability, the wearer gains "Noctis." While the wearer has "Noctis," the DMG dealt by all ally memosprites ignores 20.0 / 22.5 / 25.0 / 27.5 / 30.0% of the targets' DEF. Increases the DMG dealt by the wearer and their memosprite by 30.0 / 37.5 / 45.0 / 52.5 / 60.0%. When the wearer's memosprite disappears, the wearer recovers 8 / 10 / 12 / 14 / 16 Energy. Effects of the same type cannot stack.

Sources: Event Warp (limited)

A solid stat-stick option that grants HP%, increasing the ATK bonus she provides while slightly increasing her own DMG.

The Story's Next Page (S5)
102%

Increases the wearer's Max HP by 16.0 / 20.0 / 24.0 / 28.0 / 32.0%. After the wearer's memosprite attacks, the Outgoing Healing of the wearer and their memosprite increases by 12.0 / 15.0 / 18.0 / 21.0 / 24.0%, lasting for 1 turn(s).

Sources: Event Warp (limited), Stellar Warp

A decent stat-stick option.

The Story's Next Page (S1)
101%

The Flower Remembers (S5)
101%

Increases the wearer's CRIT DMG by 24.0 / 28.0 / 32.0 / 36.0 / 40.0%. The CRIT DMG dealt by the wearer's memosprite increases by 24.0 / 30.0 / 36.0 / 42.0 / 48.0%.

Sources: Nameless Glory

A personal DMG-focused Light Cone.

Time Woven Into Gold (S1)
100%

Increases the wearer's base SPD by 12 / 14 / 16 / 18 / 20. After the wearer and the wearer's memosprite attacks, the wearer gains 1 stack of "Brocade." Each stack of "Brocade" increases the wearer's and their memosprite's CRIT DMG by 9.0 / 10.5 / 12.0 / 13.5 / 15.0%, stacking up to 6 time(s). When reaching maximum stacks, each "Brocade" stack additionally increases Basic ATK DMG dealt by 9.0 / 10.5 / 12.0 / 13.5 / 15.0%.

Sources: Event Warp (limited)

An SPD stick with some accumulating CRIT DMG on the side.

Memory's Curtain Never Falls (S5)
100%

Increases the wearer's SPD by 6.0 / 7.5 / 9.0 / 10.5 / 12.0%. After the wearer uses Skill, increases the DMG dealt by all allies by 8.0 / 10.0 / 12.0 / 14.0 / 16.0%, lasting for 3 turn(s).

Sources: Herta's Store

A free-to-play friendly option that provides SPD and some DMG% at the start of battle. Definitely most F2P-useful option supportively; the team DMG boost is nice, even though it is very temporary.

Memory's Curtain Never Falls
S1

Best Relics and Planar Ornaments for Robin Summeretto

Best Relics for Robin • Summeretto

These are the best Relic Sets to build for Robin • Summeretto.

World-Remaking Deliverer
100%

2-Piece Set: Increases CRIT Rate by 8.0%.

4-Piece Set: After the wearer uses Basic ATK or Skill, if the wearer's memosprite is on the field, increases Max HP of the wearer and their memosprite by 24.0%, and increases all allies' DMG dealt by 15.0%, lasting until after the wearer's next use of Basic ATK or Skill.

Robin • Summeretto's best performing Relic Set. It increases Robin's and her Songbirds's Max HP (hence increasing her ATK bonus) while providing a team-wide DMG buff.

Robin may also wear 2PC2PC SPD sets.

Best Planar Ornaments for Robin • Summeretto

Amphoreus, The Eternal Land
101%

2-Piece Set: Increases the wearer's CRIT Rate by 8.0%. While the wearer's memosprite is on the field, increases all allies' SPD by 8.0%. This effect cannot be stacked.

A strong option for Robin, providing herself with CRIT Rate while increasing the SPD of allies when she first summons a memosprite.

Lushaka, the Sunken Seas
100%

2-Piece Set: Increases the wearer's Energy Regeneration Rate by 5.0%. 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 12.0%.

A supportive alternative that provides Energy Regeneration Rate and ATK; ideal for ATK-scaling DMG dealers.

Sprightly Vonwacq
98%

2-Piece Set: Increases the wearer's Energy Regeneration Rate by 5.0%. When the wearer's SPD reaches 120 or higher, the wearer's action is Advanced Forward by 40.0% immediately upon entering battle.

A strong option that improves Robin's Energy regeneration while allowing her to act earlier at the start of battle, like her Signature Light Cone. In some teams this makes literally no difference unless everyone else has an early Action Advance.

Robin Summeretto's Stat Priority

Body

HP%

CRIT DMG

Feet

SPD

Planar Sphere

HP%

Link Rope

Energy Regeneration Rate

Stat Priority

SPD

HP%

CRIT DMG

Recommended Endgame Stats for Robin Summeretto

5000+

DEF

1000+

SPD

160+

CRIT Rate

90%+

CRIT DMG

100%+

Energy Regeneration Rate

100%+

Traces Priority

Skills Priority

Ultimate = Talent = Memosprite Skill > Skill > Basic ATK

Major Traces Priority

Deviated Chords > Improvised Blues > Rebuilt Harmony

Robin Summeretto Build Comments

Robin • Summeretto's gameplay revolves around building Vibes through ally actions before entering the Fever state. Allies attacking, healing, or providing Shields allow Robin to rapidly accumulate Vibes, and when she reaches 12 Vibes, she will summon all Summer Songbirds.

After reaching the required Vibes, Robin enters Fever, becoming unable to act while her memosprites perform attacks and provide powerful team-wide buffs. During this state, allies ignore enemy DEF based on Robin's current Vibes, while Summer Songbirds increase the team's DMG dealt and cause enemy Vulnerability.

Robin strongly prefers teams with memosprites or frequent attackers, as additional ally actions directly increase her Vibes generation and allow her to maintain Fever uptime permanently.

Robin Summeretto's Best Teams

To learn all about Robin • Summeretto's synergies and best team compositions, check our dedicated Robin • Summeretto team page below:

Robin • Summeretto Teams

Robin Summeretto's Best Eidolons

Eidolon	% Diff	% Diff E0	Comment
Stray Bird of Summer	27.2%	27.2%	One of Robin's strongest Eidolons, increasing her maximum Vibes and improving Vibes generation.
A Heart of Still Water	37.1%	74.4%	Provides damage through True DMG based on recorded ally damage, similar to Cipher's Ultimate. A powerful increase for teams with extremely high damage output.
Echoes Left Along the Way	2.3%	78.4%	A poor increase, buffing Talent levels.
Her Variation on the Theme	4.1%	85.8%	Improves Robin's Fever uptime by immediately granting Vibes and increasing Summer Songbirds' SPD.
To Chase the Dawn Anew	0.7%	87.1%	A poor increase, buffing Talent levels.
A Song Yet Unnamed	62.2%	203.3%	Robin • Summeretto's final Eidolon. It grants allies All-Type RES PEN, dramatically improves Summer Songbirds' damage, and provides a massive CRIT DMG increase during Fever, along with giving her more Energy.

Camaraderia

Guide Author

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This guide is written by camaraderia, a Honkai: Star Rail theorycrafter focused on spreadsheets, optimization, and build recommendations for all characters. He regularly maintains a comprehensive list of resources for upcoming characters and an active theorycrafting community, helping players with realistic assumptions across all investment levels.