5-Star
Imaginary
The Erudition
S+ Tier
Imaginary
The EruditionThe premier AoE Break DPS in Honkai: Star Rail. Rappa dominates multi-enemy content through her Sealform state, which enhances her Basic ATKs to relentlessly hammer Toughness bars, even on enemies without Imaginary Weakness, and triggers Super Break DMG that scales devastatingly with high ATK and Break Effect.
Rappa
Ninja of the Galaxy RangersBest Light Cone
Ninjutsu Inscription
Best Relic Set
Iron Cavalry 4pc
Planar Set
Talia: Banditry
Team Rule
Super Break Enabler
Best Partner
Skills
Basic
Ninjutsu: Rise Above Tumbles / Ningu: Demonbane Petalblade
Normal form deals Imaginary DMG equal to 50% ATK to one enemy. In Sealform, Enhanced Basic ATK (Ningu: Demonbane Petalblade) launches 3 hits: the first 2 hit a single target for 60% ATK and adjacent targets for 30% ATK; the 3rd hit deals 60% ATK to all enemies. Can reduce Toughness even on enemies without Imaginary Weakness (at 50% efficiency). The 3rd hit triggers Talent Break DMG.
60%
ATK per hit
Skill
Ninja Strike: Rooted Resolute
Deals Imaginary DMG to all enemies equal to 60% of Rappa's ATK. A straightforward AoE nuke used outside of Sealform. Scales only on ATK%, so it is lower priority for upgrades. Cannot be used while in the Sealform state.
60%
AoE ATK
Ultimate
Nindo Supreme: Aishiteru
Enters the Sealform state. Immediately grants 1 extra turn, obtains 3 points of Chroma Ink, and increases Weakness Break Efficiency by 50% and Break Effect by 10% (scales up to +30% at max level). While in Sealform, Basic ATK is enhanced and Skill/Ultimate are disabled. Using Enhanced Basic ATK consumes 1 Chroma Ink; when all Ink is depleted, exits Sealform.
+50%
Break Efficiency
Talent
Ninja Tech: Endurance Gauge
Each time an enemy is Weakness Broken, Rappa gains 1 point of Charge (max 10). When launching the 3rd hit of Enhanced Basic ATK, additionally deals Break DMG equal to 30% of Imaginary Break DMG to all enemies (ignoring Weakness Type to reduce 2 Toughness), consuming all Charge. Each Charge point increases Break DMG multiplier by 25% and extends Toughness reduction by 1. This is the primary damage source of Rappa's kit.
+25%
per Charge
Technique
Ninja Dash: By Leaps and Bounds
Enters the Graffiti state for 20 seconds. Moves rapidly and attacks any enemies touched, blocking all enemy attacks during movement. Upon entering combat by attacking, deals 30 Toughness Reduction (ignores Weakness type) and Break DMG equal to 200% Imaginary Break DMG to each target, and 180% to adjacent targets. Also regenerates 10 Energy.
200%
Break DMG
Build Targets
Relic Main Stats
Head
HP (fixed)
Hands
ATK (fixed)
Body
ATK%
Feet
Speed
145+ for Talia bonus
Planar Sphere
ATK%
Link Rope
Break Effect
Stat Targets
Substat Priority
01
Speed
hit 145 first
02
Break Effect
250% target
03
ATK%
scales Break DMG
04
Effect RES
prevents CC
Skill Upgrade Order
Ult
1st
Talent
2nd
Basic
3rd
Skill
Last
Ultimate first as it unlocks Sealform and scales Break Effect. Talent second since the 3rd Enhanced Basic ATK Break DMG is the biggest damage source. Basic ATK third for enhanced hit scaling. Skill last, as it scales only on ATK% and is rarely the priority action.
Best Light Cones
#1
Ninjutsu Inscription: Dazzling Evilbreaker
Her signature and best-in-slot. Provides a massive amount of Break Effect and advances Rappa in the turn order after using her Ultimate, enabling her Sealform chains to execute faster and more frequently.
#2
After the Charmony Fall
Strong free-to-play alternative. Provides Break Effect and increases Rappa's SPD after using her Ultimate, maintaining the action speed needed to hit the 145 SPD breakpoint for Talia.
#3
Make the World Clamor
Provides a large Ultimate DMG increase at higher Superimpose levels. Also restores Energy to Rappa at the start of each turn, helping activate her Ultimate sooner in cycle-sensitive content.
#4
Eternal Calculus
Provides a ton of ATK which directly scales Rappa's Break DMG. Also provides some SPD. A solid option if you need more ATK to clear the 3200 threshold.
#5
Passkey
Budget 3-star option. Allows Rappa to regenerate more Energy through her Skill, which is useful for reaching her Ultimate faster without any other premium options.
Best Relics
Cavern Sets
1
Iron Cavalry Against the Scourge
Her best-in-slot cavern set. The 4-piece bonus improves both Break DMG and Super Break DMG by ignoring a portion of the target's DEF stat. This directly amplifies the core of Rappa's damage output and nothing else competes for the slot on fully built characters.
2
Thief of Shooting Meteor
Strong alternative providing a significant amount of Break Effect. Also restores Rappa's Energy when she inflicts Weakness Break, helping her cycle her Ultimate faster. The energy bonus scales with the number of enemies broken per turn.
3
⊕
Iron Cavalry (2pc) + Messenger Traversing Hackerspace (2pc)
Viable mixed option if your individual pieces have excellent substats. Iron Cavalry 2pc gives Break Effect while Messenger provides SPD, helping hit the 145 breakpoint for Talia's bonus effect.
Planar Ornament Sets
1
Talia: Kingdom of Banditry
Best planar set for Rappa. Provides Break Effect and increases it further when Rappa's SPD reaches 145 or higher. Since Rappa should always be hitting this threshold with Speed boots and substats, the bonus is essentially permanent in a properly built kit.
2
Forge of the Kalpagni Lantern
Niche option. Can be excellent when facing enemies with Fire Weakness since the set provides Break Effect and an additional Break Effect bonus in those scenarios. Not a general recommendation.
3
Space Sealing Station
Solid alternative if you want to push ATK instead of Break Effect for the planar slot. Boosts ATK which scales Rappa's Break DMG directly, especially relevant for the Withered Leaf Ascension Trace threshold at 2400 ATK.
Best Teams for Rappa
Rappa needs a Super Break enabler every game. Harmony Trailblazer or Fugue fills this role. Pair with a Break Effect support and a sustain unit to maximize her Sealform uptime.
01 · Premium Super Break
Best-in-slot composition
Rappa and Fugue combine for massive Super Break DMG. Fugue also helps Rappa ignore enemy Weaknesses with her Skill. The Dahlia provides Weakness Break Efficiency, Break Effect, and Super Break DMG outside of standard Weakness Break. Lingsha handles AoE healing and increases Break DMG taken by enemies.
02 · Harmony Trailblazer Core
F2P-friendly Super Break enabler
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Harmony Trailblazer enables Super Break DMG with their Ultimate. Ruan Mei increases Break Efficiency, delays Weakness recovery, and provides all-type RES PEN. Gallagher's healing scales on Break Effect and his Ultimate inflicts Besotted, increasing Break DMG taken by enemies.
03 · Ruan Mei Variant
High Break Efficiency pressure
Double Break support with Fugue and Ruan Mei creates overwhelming Toughness pressure. Ruan Mei's RES PEN and Weakness Break efficiency stack with Fugue's DEF ignore and Weakness implant. Aventurine provides reliable shielding without consuming healing turns.
04 · F2P Budget
Accessible characters only
Harmony Trailblazer is available to all players and enables Super Break DMG with their Ultimate. Asta provides ATK and SPD buffs which benefit both Rappa's Break DMG and action economy. Lynx keeps the party alive with healing and debuff cleanse. No limited 5-stars required.
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Eidolons
E
1
Returned Is the Revenant With No Ferry Toll
During the Sealform state, DMG dealt by Rappa ignores 15% of targets' DEF. After exiting the Sealform state, regenerates 20 Energy. The DEF ignore directly amplifies all Break DMG during Sealform, while the energy refund helps Rappa cycle her Ultimate faster on the next rotation.
High Pull Value
E
2
Free Is the Mind Enlightened by Haikus
The Enhanced Basic ATK's first 2 hits have their Toughness Reduction against the designated enemy increased by 50%. This is especially strong in Super Break teams because more Toughness reduction means more Super Break DMG instances, which scales dramatically with Break Effect investment.
Best Stopping Point
E
3
Many Are the Shrines That Repel No Hell
Skill level +2 (max 15) and Talent level +2 (max 15). The Talent upgrade is the more meaningful boost, increasing the scaling of the 3rd Enhanced Basic ATK Break DMG which is Rappa's primary damage action.
Solid Upgrade
E
4
Lost Is the Nindo Devoured by Time
While in the Sealform state, increases all allies' SPD by 12%. Provides a team-wide speed buff during Rappa's Sealform window, which can help teammates take faster turns and apply more pressure in the same cycle window.
Team Utility
E
5
Steady Is the Ranger With Unerring Arrows
Ultimate level +2 (max 15) and Basic ATK level +1 (max 10). The Ultimate upgrade increases the Break Effect buff granted on Sealform entry, which is a meaningful damage increase across all Sealform Enhanced Basic ATKs.
Incremental
E
6
Righteous Is the Wrath That Spares No Evil
When battle starts, Rappa gains 5 points of Talent Charge (upper limit raised to 5). After launching the 3rd hit of Ningu: Demonbane Petalblade, gains 5 points of Charge. This means Rappa enters every fight at max Charge and immediately refills after each 3rd hit, resulting in maximum Break DMG on every Enhanced Basic ATK rotation.
Massive Upgrade
Major Traces
Ninjutsu Inscription: Sky High
Ascension 2
When the Weakness of an elite-level or higher enemy is broken, Rappa additionally gains 1 point of Charge and regenerates 10 Energy. Highly relevant in Memory of Chaos and Apocalyptic Shadow where elite enemies are the primary targets. The energy refund meaningfully reduces the turns needed to cycle her Ultimate.
Ninjutsu Inscription: Sea Echo
Ascension 4
While in Sealform, after Rappa uses Enhanced Basic ATK to deal DMG to a Weakness Broken enemy, converts the Toughness Reduction from that instance to 1 instance of 60% Super Break DMG. This is one of the biggest damage traces in her kit, significantly increasing her output on any broken target and synergizing directly with Super Break team compositions.
Ninjutsu Inscription: Withered Leaf
Ascension 6
When an enemy becomes Weakness Broken, increases Break DMG taken by 2%. If Rappa's ATK exceeds 2400, every 100 excess ATK adds +1% (up to +8% additional). This effect lasts 2 turns. Maxing ATK to 3200+ in combat activates the full 10% Break DMG amplification, making ATK a dual-purpose stat in Rappa's kit.
+9%
SPD
+28%
ATK
+13.8%
Break Effect
Upgrade Materials
Chordal Mirage
Character Ascension
Dream Collection Component
Ascension & Trace Material
Rough Sketch
Trace Material
Lost Echo of the Shared Wish
Weekly Boss Drop
Frequently Asked Questions
No. Rappa performs very well with After the Charmony Fall or Make the World Clamor. Her signature (Ninjutsu Inscription: Dazzling Evilbreaker) is a meaningful upgrade due to its Break Effect and action advance, but she is fully capable of clearing all endgame content at E0 with free alternatives.
The vast majority of Rappa's damage comes from Break DMG and Super Break DMG, which are calculated from Break Effect and ATK rather than CRIT Rate and CRIT DMG. Break DMG is not subject to critical hits, so investing in CRIT stats provides negligible return. Focus entirely on ATK, Break Effect, and Speed instead.
Using Rappa's Ultimate enters Sealform, grants an immediate extra turn, and provides 3 Chroma Ink. Each Enhanced Basic ATK consumes 1 Chroma Ink. The 3 Ink means you use Enhanced Basic ATK three times before Sealform ends. During this window, Break Effect and Break Efficiency are boosted, and the Ascension 4 trace converts Toughness Reduction hits on Weakness Broken enemies into Super Break DMG instances.
Talia: Kingdom of Banditry is her best-in-slot planar ornament. It provides Break Effect and an additional bonus when your Speed reaches 145 or higher. Since Rappa should always equip Speed Feet and aim for 145+ SPD, this set's full effect is effectively always active in a properly built kit.
Yes, but at reduced efficiency. Rappa's Enhanced Basic ATK during Sealform can reduce Toughness on enemies without Imaginary Weakness, but the Toughness Reduction is equal to 50% of the normal value. Her Talent's 3rd hit can also ignore Weakness Type. This means she is still functional on non-Imaginary-weak enemies, though her damage is naturally higher when the full Toughness Reduction applies.
E1 and E2 provide the most value. E1 gives 15% DEF ignore during Sealform plus 20 Energy on exit, directly translating into more Break DMG and faster rotation. E2 increases Toughness Reduction on the first 2 Enhanced Basic ATK hits, which is especially powerful in Super Break teams where each Toughness reduction event generates additional Super Break DMG. E6 is transformative for dedicated players: it starts every fight at max Charge and refills Charge after each 3rd hit rotation, maximizing Talent Break DMG.
