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

Asta moves, skills and special abilities

Move & Ability Guide

Asta: 4-Star, Fire, The Harmony. Faction: Herta Space Station (Location).

24 ability entries1 Skill1 Ultimate1 Talent2 Bonus Trace10 Stat Trace1 Technique2 Basic Atk6 Eidolon

Skills

1
Meteor Storm
Skill

Inflicts Fire damage equal to 25% of Asta's ATK to a single enemy with 4 more bombardments. Each bombardment inflicts Fire damage equal to 25% of Asta's ATK to a random enemy.

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
Astral Blessing
Ultimate

Increases SPD of all allies by 36 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.

Talent

1
Astrometry
Talent

Gains a Charging stack for every different enemy hit by Asta plus an additional stack if the enemy hit has Fire Weakness . For every Charging stack Asta has, all allies' ATK increases by 7% , up to 5 time(s). Starting from her second turn, Asta's Charging stack count is reduced by 3 at the beginning of every turn.

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
Constellation
Bonus Trace

Asta's DEF increases by 6% for every current Charging stack she possesses.

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.
Ignite
Bonus Trace

When Asta is on the field, all allies' Fire damage increases by 18%.

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
CRIT Rate Boost
Stat Trace

CRIT Rate 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.
DMG Boost
Stat Trace

Fire damage increases by 6.4%

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.
DEF Boost
Stat Trace

DEF increases by 10.0%

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.
DMG Boost
Stat Trace

Fire damage increases by 4.8%

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.
DEF Boost
Stat Trace

DEF increases by 7.5%

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.
DMG Boost
Stat Trace

Fire damage increases by 3.2%

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.
DMG Boost
Stat Trace

Fire damage increases by 4.8%

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.
CRIT Rate Boost
Stat Trace

CRIT Rate increases by 2.7%

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.
DEF Boost
Stat Trace

DEF increases by 5.0%

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.
DMG Boost
Stat Trace

Fire damage increases by 3.2%

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.

Technique

1
Miracle Flash
Technique

Immediately attacks the enemy. After entering battle, inflicts Fire damage equal to 50% of Asta'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.

Basic Atk

2
Spectrum Beam
Basic ATK

Inflicts Fire damage equal to 50% of Asta's ATK to a single enemy.

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.
Sparks
Basic ATK

Asta's Basic ATK has a 80% base chance to Burn enemies for 3 turn(s). Burned enemies take Fire DoT equal to 50% of damage dealt by Asta's Basic ATK at the start of each turn.

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
Star Sings Sans Verses or Vocals
Eidolon

When using Skill, inflicts damage for 1 extra time to a random enemy.

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.
Moon Speaks in Wax and Wane
Eidolon

After using her Ultimate, Asta's Charging stacks will not be reduced in the next turn.

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.
Meteor Showers for Wish and Want
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.
Aurora Basks in Beauty and Bliss
Eidolon

Asta's Energy Regeneration Rate increases by 15% when she has 2 or more Charging stacks.

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.
Nebula Secludes in Cold Cosmos
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.
Cosmos Dreams in Calm and Comfort
Eidolon

Charging stack(s) lost in each turn is reduced by 1

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.