Honkai: Star Rail Robin - Summeretto Build

The Sea Sings in My Key

Single Target

Deals Wind DMG equal to 25% of Robin • Summeretto's Max HP to one enemy.

Summer Strums the Soul

Summon

Summons the memosprite "Summer Songbirds" Bessie. If any member of the "Summer Songbirds" is already on the field, restores their HP by an amount equal to 50% of "Summer Songbirds'" Max HP, and gains 6 Vibes.

Ascend That Rhapsody in Blue

Support

Advances the action of one designated ally character (excluding Robin • Summeretto) by 100% and regenerates a fixed amount of Energy equal to 12% of their Max Energy. Then, grants them the "Special Guest" effect. When the "Special Guest" character or their summon attacks, they additionally grant Robin • Summeretto 2 Vibes but cannot make other friendly targets gain the action advance effect. This lasts for 2 turn(s), and its duration decreases by 1 at the start of this character's turn.

Wings Heed No Borders

Enhance

Memosprite "Summer Songbirds" has an initial Max HP equal to 70% of Robin • Summeretto's Max HP and an initial SPD equal to 180% of Robin • Summeretto's SPD. When an ally target uses an attack, or when they provide healing or Shield for the first time in any target's turn, Robin • Summeretto gains Vibes by 1 point, capped at 50. While "Summer Songbirds" Bessie is on the field, if Robin • Summeretto's Vibes is 6 or higher, immediately summons "Summer Songbirds" Drummie, and if Vibes is 12 or higher, immediately summons "Summer Songbirds" Paddie. When all "Summer Songbirds" take the stage, dispels all Crowd Control debuffs inflicted upon Robin • Summeretto and the "Summer Songbirds", starts the "Fever" state, and deploys a Zone. When ally targets deal DMG within the Zone, they ignore a percentage of enemy targets' DEF equal to (10% + Vibes × 0.5%). While in the "Fever" state, Robin • Summeretto and the "Summer Songbirds" are immune to Crowd Control debuffs. Robin • Summeretto will not enter her turn until the "Fever" state ends.

We Are the Melody

Enhance

After using Technique, advances action by 20% at the start of the next battle, immediately gains 6 Vibes, and increases all allies' DMG dealt by 30%, lasting for 2 turn(s).

Stray Bird of Summer

"Summer Songbirds" will keep a tally of 100% of the non-True DMG dealt by ally targets. When using the Memosprite Skill, additionally deals True DMG to the enemy target with the highest HP, equal to (11% + current Vibes × 0.1%) of the total tally. Then, clears 50% of the tally.

A Heart of Still Water

Ally targets' All-Type RES PEN increases by 18%. The upper limit of Robin • Summeretto's Vibes increases by 20. The first time an ally target uses an ability during any target's turn to cause Robin • Summeretto to gain Vibes, she gains an additional 2 points.

Echoes Left Along the Way

Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15. Memosprite Talent Lv. +1, up to a maximum of Lv. 10.

Her Variation on the Theme

Upon entering the "Fever" state, immediately gains 12 Vibes, and increases the SPD of "Summer Songbirds" by an amount equal to (20% + current Vibes × 0.5%).

To Chase the Dawn Anew

Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10. Memosprite Skill Lv. +1, up to a maximum of Lv. 10.

A Song Yet Unnamed

Increases the Memosprite Skill's DMG multiplier by 100% of its original value. While in the "Fever" state, Robin • Summeretto can store her Ultimate up to 2 times. After entering the "Fever" state for the first time in this battle or when the the "Fever" countdown's turn starts, regenerates a fixed 140 Energy.

Deviated Chords

When an ally target causes Robin • Summeretto to gain Vibes, if their ATK is higher than Robin • Summeretto's, increases that target's ATK by an amount equal to (16% + Vibes × 0.4%) of Robin • Summeretto's Max HP. Otherwise, increases that target's CRIT DMG by an amount equal to (40% + Vibes × 1.5%). Lasts for 2 turn(s).

Improvised Blues

When Robin • Summeretto or the "Summer Songbirds" receive healing or Shield provided by teammates, causes Robin • Summeretto to gain 12 stack(s) of "Groove," capped at 12. The first time Robin • Summeretto gains Vibes during any target's turn, if she has "Groove," consumes 1 stack of "Groove" and regenerates a fixed 3 Energy.

Rebuilt Harmony

Increases the CRIT Rate of Robin • Summeretto and "Summer Songbirds" by 50%.