Robin • Summeretto is a five-star Wind character on the Path of Remembrance, and she plays nothing like the Harmony Robin players already know. She builds a resource called Vibes through ally actions, summons three memosprites known as the Summer Songbirds, and locks into a Fever state where she stops taking turns while buffing the whole team. Building her well comes down to feeding her HP and SPD, then choosing between an ATK-focused or Crit-focused setup based on your main damage dealer.
Quick answer: Run Rise and Sing as her Light Cone, the four-piece World-Remaking Deliverer relic set, and the Amphoreus, The Eternal Land Planar Ornament set. Use HP%/SPD main stats for ATK-scaling teams, or Crit DMG/SPD/DMG Bonus for teams whose carry does not scale on ATK. Level Ultimate, Talent, and Memosprite Skill first, and keep SPD at 134 or higher.
Two builds depending on your carry
Robin’s buff changes based on the ally who triggers her Vibes. When an ally has higher ATK than Robin, her Deviated Chord trace grants that ally an ATK boost scaled off her Max HP. When the ally’s ATK is not higher than hers, she instead grants Crit DMG scaled off her Vibes. That split creates two distinct stat goals.
| Team type | Main stat line | Substat priority |
|---|---|---|
| ATK-scaling carry | HP% body / SPD feet / HP% sphere / ERR rope | HP% > SPD > Crit Rate > Crit DMG |
| Non-ATK carry (HP, DEF, Elation) | Crit DMG body / SPD feet / DMG Bonus sphere / ERR rope | SPD > Crit DMG > HP% > Crit Rate |
Even on a non-ATK team you can still stack HP, but the payoff is smaller. If your carry is Phainon, you can drop SPD boots for HP boots since his kit covers the tempo. A separate trace already gives Robin and the Songbirds a flat 50% Crit Rate, so most of your Crit investment can go straight into Crit DMG rather than Crit Rate.
Best Light Cones for Robin Summeretto
Her signature Rise and Sing is the cleanest fit. It boosts her Max HP, refunds one Skill Point for the team after her Ultimate, and advances her action on entering combat. Its standout trick is a 20% team-wide SPD buff that normally lasts two turns. If you push Robin into Fever before those two turns end and keep her there, she never takes another turn, so the SPD buff effectively stays permanent.
| Light Cone | Why it works |
|---|---|
| Rise and Sing | Signature. HP boost, Skill Point refund, entry action advance, and a near-permanent 20% team SPD buff once she stays in Fever. |
| To Evernight’s Stars | Adds HP plus 20% memosprite DEF ignore for all allies, with a small personal DMG bump. A strong stat-stick that leans slightly offensive. |
| Memory’s Curtain Never Falls | Free-to-play pick from Herta’s Store. Grants SPD and a temporary team DMG buff at the start of battle. |
| SPD or HP stat-sticks | This Love, Forever; Long May Rainbows Adorn the Sky; Make Farewells More Beautiful; Time Woven Into Gold; The Story’s Next Page all work when the top options are missing. |
Note: To Evernight’s Stars refunds 8 Energy when the memosprite disappears, but you generally do not want Robin to leave Fever, so treat that as a minor bonus rather than a plan.
Relics and Planar Ornaments
World-Remaking Deliverer is her best relic set. The four-piece raises the Max HP of Robin and her Songbirds and adds a 15% team-wide DMG buff. Since Robin stops using her Basic ATK and Skill once Fever begins, that buff stays active almost the entire fight. For the Planar Ornament, Amphoreus, The Eternal Land gives her 8% Crit Rate and hands all allies 8% SPD while her memosprite is on the field, which feeds directly back into faster Vibe generation.
| Set | Role |
|---|---|
| World-Remaking Deliverer (4pc) | Best-in-slot. HP boost plus a 15% team DMG buff that lasts nearly the whole battle. |
| Amphoreus, The Eternal Land (Ornament) | Top Planar pick. Crit Rate for her and 8% team SPD while the Songbirds are out. |
| Sacerdos’ Relived Ordeal | Transitional. Her Ultimate can still grant 18% Crit DMG to one ally for two turns while you farm Deliverer. |
| Messenger Traversing Hackerspace | Alternative for stacking more SPD, though the buff lasts one turn and does not stack. |
| 2pc + 2pc SPD/HP sets | Warrior Goddess of Sun and Thunder + Diviner of Distant Reach, or 2pc Longevous Disciple. |
Sprightly Vonwacq and Lushaka, the Sunken Seas are viable Ornament swaps. Vonwacq advances her action at 120+ SPD, which matters if you need the first Songbird summoned as early as possible. Lushaka suits ATK-scaling teams by handing 12% ATK to the lead unit.
Recommended stats and trace priority
SPD is the stat that keeps her Fever loop running, and her memosprites start at 180% of her SPD, so building it improves both her opening rotation and the Songbirds’ tempo. Aim for the endgame targets below, then top off HP or Crit DMG based on your carry.
| Stat | Target |
|---|---|
| HP | 5,000+ |
| SPD | 134+ (160+ for high investment) |
| Crit Rate | 90%+ (mostly covered by her trace) |
| Crit DMG | 100%+ on non-ATK teams |
| Energy Regen Rate | 100%+ |
For traces, level Ultimate, Talent, and Memosprite Skill together first, then Memosprite Talent, and leave Skill and Basic ATK for last since she barely uses them in Fever. Among major traces, prioritize Deviated Chord over Improvised Blues, then Rebuilt Harmony.
Eidolon priority
E1 and E2 give the strongest returns before her final Eidolon. E1 raises her Vibe records and adds True DMG through the Memosprite Skill, while E2 grants allies 18% All-Type RES PEN and lifts her Vibe cap. E6 is transformative, doubling the Memosprite Skill multiplier and allowing her Ultimate to store twice, but it sits far up the curve.
| Eidolon | Effect | Value |
|---|---|---|
| E1 – Stray Bird of Summer | Records ally DMG and adds True DMG on the Memosprite Skill; improves Vibe generation. | Priority |
| E2 – A Heart of Still Water | +18% All-Type RES PEN for allies, +20 Max Vibes, extra Vibes on first ally action. | Priority |
| E4 – Her Variation on the Theme | +12 Vibes on entering Fever and higher Songbird SPD. | High |
| E6 – A Song Yet Unnamed | Doubles Memosprite Skill multiplier, stores Ultimate twice, big Energy refund in Fever. | Priority (top end) |
The rough pull order is E1 > E2 > E6 > E4, with E3 and E5 acting as level-up filler.
Best teams for Robin Summeretto
Robin slots into almost any roster that needs a support, and she pairs best with carries who attack often plus a healer or shielder who keeps feeding her Vibes. Frequent memosprite users and Assist Skills, like those from Himeko • Nova, generate stacks quickly and help her hold Fever indefinitely.
- Ashveil + Robin Summeretto + Tribbie or Hyacine + Mortenax Blade
- Aglaea + Robin Summeretto + Tribbie + Huohuo
- Himeko • Nova + Robin Summeretto + Welt or Dan Heng • Permansor Terrae + Mortenax Blade
- Castorice + Evernight or Cyrene + Robin Summeretto + Hyacine
- Saber + Gilgamesh + Robin Summeretto + Mortenax Blade or Huohuo
Because she is a Remembrance character herself, she also unlocks setups involving Cyrene and Evernight that reward Remembrance allies, adding a little extra personal damage on top of her support role. Feed her SPD, keep an ally attacking or sustaining outside her turn, and the Vibes engine handles the rest.
