Rappa Honkai: Star Rail fighter artwork
Honkai: Star Rail Move & Ability Guide

Rappa moves, skills and special abilities

Move & Ability Guide

Rappa: 5-Star, Imaginary, The Erudition. Faction: Galaxy Rangers — The Hunt.

24 ability entries1 Skill1 Ultimate1 Talent2 Bonus Trace10 Stat Trace2 Basic Atk1 Technique6 Eidolon

Skills

1
Ninja Strike: Rooted Resolute
Skill

Toughness Break: 10 Inflicts Imaginary damage equal to 60% of Rappa's ATK to all enemies.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Ultimates

1
Nindō Supreme: Aishiteru
Ultimate

Enters the "Sealform" state, gains 1 extra turn, obtains 3 points of "Chroma Ink," and increases Weakness Break Efficiency by 50% and Break Effect by 10% While in the "Sealform" state, gains Enhanced Basic ATK, and Skill and Ultimate cannot be used. After using Enhanced Basic ATK, consumes 1 point of "Chroma Ink." When "Chroma Ink" is depleted, exit the "Sealform" state.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Talent

1
Ninja Tech: Endurance Gauge
Talent

When the enemy target is Weakness Broken, Rappa gains 1 point of Charge. When launching the third hit of "Ningu: Demonbane Petalblade," additionally inflicts Break damage equal to 30% of Rappa's Imaginary Break damage to all enemies. This damage can ignore Weakness Type to reduce 2 Toughness, consuming all Charge, increasing the Break damage multiplier by 25% and increases the Toughness Reduction that can ignore Weakness Type by 1. When Breaking Weakness, triggers the Imaginary Weakness Break effect.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Bonus Trace

2
Ninjutsu Inscription: Withered Leaf
Bonus Trace

When an enemy target becomes Weakness Broken, increases the Break damage taken by 2%. If Rappa's current ATK is higher than 2400, for every 100 excess ATK, additionally increases this value by 1%, up to a max additional increase of 9%. This effect lasts for 2 turn(s).

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Ninjutsu Inscription: Sky High
Bonus Trace

When the Weakness of an elite-level or higher enemy is broken, Rappa additionally gains 1 point(s) of Charge and regenerates 10 Energy.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Stat Trace

10
SPD Boost
Stat Trace

SPD increases by 4

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Break Boost
Stat Trace

Break Effect increases by 8.0%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost
Stat Trace

ATK increases by 6%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
SPD Boost
Stat Trace

SPD increases by 3

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost
Stat Trace

ATK increases by 6%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost
Stat Trace

ATK increases by 8.0%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost
Stat Trace

ATK increases by 4.0%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
SPD Boost
Stat Trace

SPD increases by 2

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Break Boost
Stat Trace

Break Effect increases by 5.3%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost
Stat Trace

ATK increases by 4.0%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Basic Atk

2
Ninjutsu Inscription: Sea Echo
Basic ATK

While in the "Sealform" state, after Rappa uses Enhanced Basic ATK to deal damage to a Weakness Broken enemy target, converts the Toughness Reduction from this instance of damage to 1 instance of 60% Super Break damage.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Ninjutsu: Rise Above Tumbles
Basic ATK

Toughness Break: 10 Inflicts minor Imaginary damage equal to 50% of Rappa's ATK to one designated enemy. Ningu: Demonbane Petalblade: Launches "Ningu: Demonbane Petalblade." The first two hits deal Imaginary damage equal to 60% of Rappa's ATK to one designated enemy and Imaginary damage equal to 30% of Rappa's ATK to adjacent targets, and the 3rd hit inflicts Imaginary damage equal to 60% Rappa's ATK to all enemies. Enhanced Basic ATK will not recover Skill Points. Attacking enemies that don't have Imaginary Weakness can still reduce Toughness, whose effect is equal to 50% of the original Toughness Reduction. When Breaking Weakness, triggers the Imaginary Weakness Break effect.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Technique

1
Ninja Dash: By Leaps and Bounds
Technique

Enters the "Graffiti" state. Moves forward rapidly for a set distance and attacks any enemies touched. After entering combat via attacking enemies, inflicts Toughness Reduction regardless of Weakness Type and Imaginary Break damage to each enemy target and inflicts Imaginary Break damage to their adjacent targets. At the same time, this unit regenerates Energy.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Eidolon

6
Returned Is the Revenant With No Ferry Toll
Eidolon

During the "Sealform" state entered by using Ultimate, damage dealt by Rappa ignores 15% of the targets' DEF. After exiting the "Sealform" state, regenerates 20 Energy.

Requirements / unlock: Eidolon 1

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Free Is the Mind Enlightened by Haikus
Eidolon

The Enhanced Basic ATK's first 2 hits have their Toughness Reduction against the one designated enemy increased by 50%.

Requirements / unlock: Eidolon 2

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Many Are the Shrines That Repel No Hell
Eidolon

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

Requirements / unlock: Eidolon 3

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Lost Is the Nindō Devoured by Time
Eidolon

While in the "Sealform" state, increases all allies' SPD by 12%.

Requirements / unlock: Eidolon 4

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Steady Is The Ranger With Unerring Arrows
Eidolon

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

Requirements / unlock: Eidolon 5

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Righteous Is the Wrath That Spares No Evil
Eidolon

When battle starts, Rappa gains 5 point(s) of her Talent's Charge, whose upper limit is 5 point(s). After launching the third hit of "Ningu: Demonbane Petalblade," gains 5 point(s) of Charge.

Requirements / unlock: Eidolon 6

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.