Honkai Star Rail's Rappa comes armed with harsh lyrics and brightly-colored spray paint, so she's sure to make a mark on your trailblazing journey. Keep reading to find out her best build, team comps, and more.
Check out all the latest Honkai Star Rail events in our helpful guide and grab yourself some free jade with our Honkai Star Rail codes. We've also ranked every playable character in our Honkai Star Rail tier list including the likes of Honkai Star Rail's Trailblazer, Honkai Star Rail's Jade, and Honkai Star Rail's Herta.
Here's everything in our Honkai Star Rail Rappa build:
What's the best Honkai Star Rail Rappa build?
Rappa is a five-star imaginary element character who treads the path of The Erudition. She's a powerful break effect DPS who requires a lot of support, but she's worth it.
Here's a brief overview of our best Rappa build:
| Rarity | ★★★★★ |
| Element | Imaginary |
| Path | Erudition |
| Best light cone | Ninjutsu Inscription: Dazzling Evilbreaker |
| Light cone substitutes |
|
| Best relic set | Iron Cavalry Against the Scourge |
| Best planar ornaments | Talia: Kingdom of Banditry |
| Main stats |
|
| Sub-stats |
|
You should equip Rappa with the Ninjutsu Inscription: Dazzling Evilbreaker, a four-piece set of Iron Cavalry Against the Scourge, and two pieces of Talia: Kingdom of Banditry. Focus on building her break effect, attack, and speed stats on all relics.
What is the best light cone for Rappa?
Unsurprisingly, Rappa's signature light cone Ninjutsu Inscription: Dazzling Evilbreaker is the best option for her as it's specifically tailored to her kit. You want to go all-in on break effect with Rappa, and this light cone can help you get there, as well as increasing her speed and energy regeneration.
If you're struggling to pull both Rappa and her light cone, you should consider the limited four-star cone After the Charmony Fall. It's slightly easier to get and also increases her break effect and speed. While it's not as good for break effect, Eternal Calculus is a solid five-star F2P option that massively boosts Rappa's attack stat, which some of her skills scale with.
Here are the best HSR Rappa light cones:
| Ninjutsu Inscription: Dazzling Evilbreaker | Increases Rappa's break effect by 60%. When entering battle, she immediately regenerates 30 energy. After Rappa uses her ultimate, she obtains "Raiton." After using two basic attacks, it advances Rappa's action by 50% and removes "Raiton." After Rappa uses her ultimate, this resets "Raiton" |
| After the Charmony Fall | Increases Rappa's break effect by 28%. After she uses her ultimate, it increases Rappa's speed by 8%, lasting for two turns |
| Eternal Calculus | Increases Rappa's attack by 8%. After using an attack, for each enemy target hit, additionally increases attack by 4%. This effect can stack up to five times and last until the next attack. If there are three or more enemy targets hit, Rappa's speed increases by 8%, lasting for one turn |
What are the best relics for Rappa?
As a break effect DPS, Rappa's best relic set is four pieces of Iron Cavalry Against the Scourge. Its set bonuses massively increase her break effect and help her attacks to further ignore defense. If you can reach 250% break effect, which is likely, this set also increases the effectiveness of Super Break, which is perfect for her best team comps.
If you're having trouble farming decent Iron Cavalry pieces, you can combine it with two pieces of Thief of Shooting Meteor instead, or simply run four-pieces of Thief. It's easier to obtain and the four-piece set also helps with energy regeneration.
For planar ornaments, Rappa's best set is undoubtedly Talia: Kingdom of Banditry. This once again boosts her break effect massively, especially as you'll already be aiming for over 145 speed. Unlike Honkai Star Rail's Firefly, Rappa can't take full advantage of Forge of the Kalpagni Lantern's bonus effect as she's an imaginary unit rather than a fire unit, so she's less likely to encounter fire-weak opponents, but it's still a viable option if you're facing a lot of fire-weak enemies.
Here are HSR Rappa's best relics:
| Iron Cavalry Against the Scourge | Two equipped: increases break effect by 16% Four equipped: if Rappa's break effect is 150% or higher, the break damage dealt to the enemy target ignores 10% of their defense. If Rappa's break effect is 250% or higher, the Super Break damage dealt to the enemy target additionally ignores 15% of their defense |
Obtain from: Cavern of Corrosion: Path of Cavalier in the Penacony Grant Theater |
| Thief of Shooting Meteor | Two equipped: increases break effect by 16% Four equipped: increases Rappa's break effect by 16%. After Rappa inflicts weakness break on an enemy, she regenerates three energy |
Obtain from: Cavern of Corrosion: Path of Jabbing Punch in the Silvermane Guard Restricted Zone on Jarilo-VI |
Planar ornaments
| Talia: Kingdom of Banditry | Two equipped: increases Rappa's break effect by 16%. When Rappa's speed reaches 145 or higher, her break effect increases by an extra 20% | Obtain from: World 4 of the Simulated Universe, or from Divergent Universe: Smelted Heart |
| Forge of the Kalpagni Lantern | Two equipped: increases Rappa's speed by 6%. When Rappa hits an enemy target that has fire weakness, her break effect increases by 40%, lasting for one turn | Obtain from: Divergent Universe: Eternal Comedy |
Relic stat recommendations
Main stats:
- Body: attack%
- Feet: speed
- Planar sphere: attack%
- Link rope: break effect
Sub-stats:
What are the best Rappa team comps?
We're still working out all of the ways to use Rappa in our teams, but it looks like she slots into some of the pre-existing Super Break teams comfortably alongside the Trailblazer and Honkai Star Rail's Gallagher.
Here are a couple of examples of strong Rappa team comps:
 Rappa |
 Trailblazer (Harmony) |
 Ruan Mei |
 Lingsha |
| Rappa |
Trailblazer (Harmony) |
 Pela |
 Gallagher |
| Rappa |
Trailblazer (Harmony) |
Ruan Mei |
 Fugue |
What are Rappa's abilities?
Here are all of Rappa's ninjutsu skills:
Active skills:
| Basic attack | Ninjutsu: Rise Above Tumbles Deals imaginary damage equal to 50% of Rappa's attack to one designated enemy Ningu: Demonbane Petalblade The first two hits deal imaginary damage equal to 60% of Rappa's attack to one enemy and imaginary damage equal to 30% of Rappa's attack to adjacent targets, and the third hit deals imaginary damage equal to 60% of Rappa's attack to all enemies. The enhanced basic attack does not recover skill points. Attacking enemies that don't have imaginary weakness can also reduce toughness equal to 50% of the original toughness reduction |
| Skill | Ninja Strike: Rooted Resolute Deals imaginary damage equal to 60% of Rappa's attack to all enemies |
| Ultimate | Nindō Supreme: Aishiteru Rappa enters the Sealform state, immediately gains one extra turn, obtains three points of Chroma Ink, and increases weakness break efficiency by 50% and break effect by 10%. While in the Sealform state, Rappa's basic attack is enhanced and she cannot use her skill or ultimate. After using her enhanced basic attack, she consumes one point of Chroma Ink. When she uses all Chroma Ink points, she exists the Sealform state |
Talent and technique:
| Talent | Ninja Tech: Endurance Gauge Each time you break an enemy's weakness, Rappa gains one point of Charge up to a maximum of ten points. When she launches the third hit of Ningu: Demonbane Petalblade, Rappa deals additional break damage equal to 30% of her imaginary break damage to all enemies. This damage can ignore weakness type to reduce two toughness, consuming all Charge points. Each Charge point increases Rappa's break damage multiplier by 25% and increases the toughness reduction that can ignore weakness type by one. When breaking weakness, Rappa triggers the imaginary weakness break effect |
| Technique | Ninja Dash: By Leaps and Bounds After using her technique, Rappa enters the Graffiti state for 20 seconds. She moves forward rapidly for a set distance and attacks any enemies that she touches. During this rapid movement, Rappa blocks all enemies' attacks. Using an attack in the Graffiti state ends the state early. After entering combat, Rappa deals 30 toughness reduction regardless of weakness type and break damage equal to 200% of her imaginary break damage to each enemy target, and break damage equal to 180% of her imaginary break damage to adjacent targets. She also regenerates ten energy |
Major traces:
| A2 | Ninjutsu Inscription: Sky High When you break the weakness of an elite-level enemy or higher, Rappa additionally gains one point of Charge and regenerates ten energy |
| A4 | Ninjutsu Inscription: Sea Echo While in the Sealform state, after Rapa uses her enhanced basic attack to deal damage to a weakness broken enemy target, she converts the toughness reduction from this instance of damage to one instance of 60% super break damage |
| A6 | Ninjutsu Inscription: Withered Leaf When weakness breaking an enemy target, this increases the break damage taken by 2%. If Rappa's current attack is higher than 2.4k, for every 100 excess attack, this value additionally increases by 1%, up to a max. additional increase of 8%. This effect lasts for two turns |
What are Rappa's eidolons?
If you're lucky enough to pull multiple copies of Rappa, you can unlock additional buffs and skills through her eidolons. Here are all of Rappa's eidolons:
| E1 | Returned Is the Revenant With No Ferry Toll During the Sealform state, Rappa's damage dealt ignores 15% of the target's defense. After exiting the Sealform state, she regenerates 20 energy |
| E2 | Free Is the Mind Enlightened by Haikus The enhanced basic attack's first two hits have their toughness reduction increased by 50% |
| E3 | Many Are the Shrines That Repel No Hell Rappa's skill level increases by two, up to a maximum of level 15, and her talent level increases by two, up to a maximum of level 15 |
| E4 | Lost Is the Nindō Devoured by Time While in the Sealform state, increases all allies' speed by 12% |
| E5 | Steady Is The Ranger With Unerring Arrows Rappa's ultimate level increases by two, up to a maximum of level 15, and her talent level increases by one, up to a maximum of level ten |
| E6 | Righteous Is the Wrath That Spares No Evil When battle starts, Rappa gains five points of Charge and its upper limit increases by five. After launching the third hit of Ningu: Demonbane Petalblade, she gains five points of Charge |
What are Rappa's ascension materials?
To unlock Rappa's true ninja potential, you'll need to scout out some specialist materials.
Here are all of Rappa's ascension materials:
| 20➔30 |
|
| 30➔40 |
|
| 40➔50 |
|
| 50➔60 |
|
| 60➔70 |
|
| 70➔80 |
|
Here's where to get all of Rappa's ascension materials:
- Dream collection components, flow valves, and making engines - drops from Dreamjolt Troupe enemies in Penacony or the Honkai Star Rail simulated universe, obtain via synthesis or assignment rewards, or bought in the embers exchange store
- Chordal mirages - drops from the Stagnant Shadow: Shape of Timbre in Penacony's Grand Theater
What are Rappa's trace materials?
You need trace materials to fully power up all of Rappa's attacks and bonus abilities. Here's the full list of materials and where to find them:
- 41 dream collection components, 56 dream flow valves, and 58 dream making engines
- Drops from Dreamjolt Troupe enemies in Penacony or the Honkai Star Rail simulated universe, obtain via synthesis or assignment rewards, or bought in the embers exchange store
- 15 rough sketches, 72 dynamic outlining, and 139 exquisite colored drafts
- Obtain from the Bud of Erudition crimson calyx in the Penacony Grand Theater, synthesis, and the embers exchange
- 12 lost echo of the shared wish - rewards from the Echo of War: Salutations of Ashen Dreams
- 11 tracks of destiny
- Three million credits
Skill trace priority:
- Talent > Ultimate > Basic attack > Skill
Major trace priority:
- Ninjutsu Inscription: Sea Echo > Ninjutsu Inscription: Withered Leaf > Ninjutsu Inscription: Sky High
That's everything you need to know about Honkai Star Rail's Rappa. While you're here, dive into more Hoyoverse adventures with our build guides for Genshin Impact's Kachina, Genshin Impact's Freminet, Zenless Zone Zero's Nicole, and Zenless Zone Zero's Ellen.