Honkai Star Rail’s Asta is a four-star fire Harmony character who acts as the lead researcher of the Herta Space Station. This lovely young lady commands the entire space station, and is on a constant search for new knowledge to sate her curiosity. So come along with us as we go stargazing with our Honkai Star Rail Asta build, and learn all about her personality, skills, eidolons, best light cones, relics, and more.
If you want to introduce yourself to the rest of the Herta Space Station staff, then hop aboard the Astral Express with our Honkai Star Rail tier list and Honkai Star Rail characters guide. We’ve also got builds for all the other friendly faces you can meet on your Trailblazing adventure, including Honkai Star Rail’s Herta, Honkai Star Rail’s Arlan, and more, plus plenty of goodies to grab in our Honkai Star Rail codes and Honkai Star Rail events guides.
Here’s everything in our Honkai Star Rail Asta build:
What’s the best Honkai Star Rail Asta build?
| Best light cone | Memories of the Past |
| Light cone substitute |
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| Best relic set | Messenger Traversing Hackerspace |
| Best planar ornament set | Broken Keel |
| Main stats |
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| Sub-stats |
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Asta’s best light cone is Memories of the Past. Her best relic set is Messenger Traversing Hackerspace, paired up with the planar ornament set Broken Keel. When building her, we recommend focusing on boosting her speed, HP, and break effect, and, if you’re using Broken Keel, getting her effect res up to 30%, too.
Beyond that, Asta is quite flexible in terms of build. You can go for a more offensive build by boosting her crit and attack to see her take down enemies while also providing buffs, or you can go for even more HP for a more tanky build. It’s entirely up to you and your personal play style.
How to use Asta
Honkai Star Rail’s Asta is a four-star fire character who treads the path of Harmony, meaning her main role is to buff her allies.
Widely considered one of the best and most versatile buffer supports in the game, she specializes in increasing the whole team’s attack and speed. However, she can also help take down enemies with her skill, which bounces between enemies. This allows her to stack up her attack bonus easily and deal an unusually high amount of toughness damage for a support.
When playing as Asta, you should aim to use her skill as often as possible in order to build up her attack bonus stacks, which can be tricky to balance as you don’t want her overuse of skill points to damage your main DPS’s damage output.
Asta’s ultimate can be tricky to time perfectly if you don’t fully grasp what speed does in this game. However, there’s no wrong way of using her, really – the speed buff from her ultimate is always somewhat valuable, and her attack buff is a brilliant resource. Play around with her and get a feel for how she fits into your team, and we’re sure you’ll see her value soon enough.
What are the best light cones for Asta?
The four-star light cone Planetary Rendezvous is Asta’s signature one, however, its skill is very specific and is only worthwhile if your main DPS (and, preferably your sub-DPS) is a fire character. Therefore, if you don’t plan on pairing Asta up with a fire DPS, it’s best to go with one of the other options below.
Memories of the Past at S5 is the best light cone for Asta, offering her increased energy from attacks so she can cast her ultimate more frequently. However, it doesn’t perform as well at lower superimposition levels.
Meshing Cogs at S5 is Asta’s second-best option, increasing the energy she gains both when she dishes out and receives attacks, once again allowing her to cast her ultimate more freely. As it’s a three-star light cone, it’s easier to get superimposition levels on this one, and is a more reliable option if you don’t have Memories of the Past at S5.
Another strong pick is But the Battle Isn’t Over, which generates skill points for the team and, once again, grants Asta some extra energy regeneration. However, this one requires you to do a bit of speed tuning in order to make the most of it, and, as some enemies can mess with your speed through different status effects, it’s not entirely reliable. It’s also a heavily contested five-star light cone, and may be better used on a different Harmony character.
| Light cone | Effect | How to obtain |
| Memories of the Past | Increases the wearer’s break effect by 28%. When the wearer attacks, they regenerate an additional four energy. This can only trigger once per turn | Gacha |
| Meshing Cogs | After the wearer uses attacks or is hit by an enemy, they regenerate an additional four energy. This effect can only trigger once per turn | Gacha |
| But the Battle Isn’t Over | Increases the wearer’s energy regeneration rate by 10% and regenerates one skill point when the wearer uses their ultimate on an ally. This effect can only occur once every two uses of the wearer’s ultimate. When the wearer uses their skill, the next ally that takes action (other than the wearer) deals 30% more damage for one turn | Gacha or the Starlight Exchange store |
| Planetary Rendezvous | Upon entering a battle, if an ally deals the same damage type as the wearer, their damage dealt increases by 12% | Gacha |
What are the best relics for Asta?
The best relic set for Asta is Messenger Traversing Hackerspace, which boosts her speed and provides a teamwide speed buff whenever she uses her ultimate on an ally.
Musketeer of Wild Wheat is another good relic set for Asta, offering her an increase in both attack and speed. Alternatively, Thief of Shooting Meteor is a good back up option, boosting her break effect, and allowing her to regenerate energy if she inflicts weakness break on an enemy, which is pretty easy for her to do if she’s facing an enemy with fire weakness.
In terms of planar sets, our top recommendation for Asta is Broken Keel, which both offers an effect res boost for her, and a crit damage boost for her allies – just make sure she has enough effect res to meet the teamwide buff requirement.
Fleet of the Ageless is another good option, giving her a HP increase and a teamwide attack buff as long as her speed is 120 or higher. Aside from that, Sprightly Vonwacq is the next best choice, increasing her energy regeneration and advancing her actions forward – though this once again relies on her having 120 speed or higher.
| Relic | Effect | Where to obtain |
| Messenger Traversing Hackerspace | Two equipped: increases speed Four equipped: when the wearer uses their ultimate on any ally (including themselves), speed for all allies increases for a certain number of turns. This effect cannot stack |
Cavern of Corrosion: Path of Elixir Seekers in The Xianzhou Luofu’s Alchemy Commission |
| Musketeer of Wild Wheat | Two equipped: increases attack by 12% Four equipped: increases the wearer’s speed by 6% and their basic attack damage by 10% |
Cavern of Corrosion: Path of Drifting in Jarilo-VI’s Corridor of Fading Echoes |
| Thief of Shooting Meteor | Two equipped: increases break effect by 16% Four equipped: increases the wearer’s break effect by 16%. The wearer regenerates three energy when they inflict weakness break on an enemy |
Cavern of Corrosion: Path of Jabbing Punch in Jarilo-VI’s Silvermane Guard Restricted Zone |
Planar ornaments
| Relic | Effect | Where to obtain |
| Broken Keel | Two equipped: increases the wearer’s effect resistance. When the wearer’s effect resistance is equal to or greater than a certain percentage, all allies’ crit damage increases | World 7 of the Simulated Universe |
| Fleet of the Ageless | Two equipped: increases the wearer’s max HP by 12%. When the wearer’s speed reaches 120 or higher, all allies’ attack increases by 8% | World 3 of the Simulated Universe |
| Sprightly Vonwacq | Two equipped: increases the wearer’s energy regeneration rate by 5%. When the wearer’s speed reaches 120 or higher, the wearer’s action advances forward by 40% immediately upon entering battle | World 4 of the Simulated Universe |
Relic stat recommendations
When picking relics for Asta, we recommend prioritizing the following stats. The increased effect hit rate is intended to help her hit more enemies with her bounce skill, so you can make the most of her passive and use it to buff the attack of your entire team.
We recommend building her speed, too, so you can capitalize on the buffs offered by the Simulated Universe relic sets, and potentially proc her passive more frequently.
Of course, your choice in relic sets also dictates which sub-stats you should prioritize. For Broken Keel, you need to ensure her effect res is at least 30%. For Sprightly Vonwacq or Fleet of the Ageless, you need to get her speed up to 120.
Main stats:
- Body: HP%
- Feet: speed
- Planar sphere: fire damage or HP%
- Link rope: energy regeneration
Sub-stats:
- Speed
- HP%
- Break effect%
- Effect res up to 30% (if you’re using Broken Keel)
What are the best Asta team comps?
Asta is an incredibly flexible unit, and pretty much all characters can benefit from her attack and speed buffs. Therefore, there’s no real ‘ideal’ Asta team comp – she can slot in just about anywhere! You can find lists of characters that are most commonly paired with Asta in MOC online, but these seem to shift depending on what characters are popular at the time – which just shows how popular and versatile she is.
However, we can say for sure that her kit compliments characters that favor both speed and attack, such as:
Beyond that, it’s up to you – try her out in the buffer slot on your favorite team, and watch those attack stats fly.
What are Asta’s abilities?
Here are all of Asta’s abilities. In combat, we recommend using her ultimate as often as possible to keep boosting your team’s overall speed. Her skill doesn’t deal a dramatic amount of damage at base value, but considering its high hit rate, it’s good for chipping down enemy weaknesses and charging up her ultimate faster.
Active skills:
| Skill | Effect |
| Basic attack: Spectrum Beam | Deal 50% of Asta’s attack as fire damage to a target enemy |
| Skill: Meteor Storm | Deal 25% of Asta’s attack as fire damage to a target enemy and bombard them four more times. Each bombardment deals 25% of Asta’s attack as fire damage to a random enemy |
| Ultimate: Astral Blessing | Increases the speed of all allies by 36 for two turns |
Talent:
| Skill | Effect |
| Astrometry | Astra gains a charging stack for every different enemy hit, plus an additional stack if the enemy hit has fire weakness. For every charging stack Asta has, all allies’ attack increases by 7% up to five times. At the start of every turn, Asta’s charging stack count is reduced by three |
Technique
| Skill | Effect |
| Miracle Flash | Immediately attack the enemy. After entering battle, deal 50% of Asta’s attack as fire damage to all enemies |
Traces:
| Traces | Effect |
| Sparks | Asta’s basic attack has an 80% chance to burn enemies for three turns. Burned enemies take fire DoT equal to 50% of damage dealt by her basic attack each turn |
| Ignite | When Asta is on the field fire damage increases by 18% |
| Constellation | Increases Asta’s defense by 6% for each Charging stack |
What are Asta’s eidolons?
Honkai Star Rail’s eidolons, like Genshin Impact’s constellations, are bonuses and upgrades you can unlock by pulling more than one copy of a character. Here are all of Asta’s eidolons.
| Eidolon | Effect |
| E1: Star Sings Sans Verses or Vocals | When using Asta’s skill, deal additional damage once to a target enemy |
| E2: Moon Speaks in Wax and Wane | When using Asta’s ultimate, she doesn’t reduce her charging stacks for the next turn |
| E3: Meteor Showers for Wish and Want | Increases the level of Asta’s skill level by two, up to a maximum of level 15, and the level of her talent by two, up to a maximum of ten |
| E4: Aurora Basks in Beauty and Bliss | When Asta’s talent charging stack count reaches two or higher, her energy restoration rate increases by 15% |
| E5: Nebula Secludes in Cold Cosmos | Increases the level of Asta’s ultimate by three, up to a maximum of level 15, and increases the level of her basic attack by one, up to a maximum of level ten |
| E6: Galaxy Dreams in Calm and Comfort | The charging stack reduction of Asta’s talent is reduced by one |
What are Asta’s ascension materials?
You can get Asta all the way up to level 80, but you need to use specific materials to raise her ascension rank at certain intervals. Here are all the materials you need to get Asta to max level.
You can get the silvermane badges and their higher-grade counterparts, silvermane insignia and silvermane medals, from the silvermane guard enemies on Jarilo-VI, Honkai Star Rail Simulated Universe enemies, assignment rewards, and the embers exchange store. The endotherm chitin are drops from the Shape of Blaze Honkai Star Rail Stagnant Shadow in Jarilo-VI’s silvermane guard restricted zone.
| Required level | Credits | Materials |
| 20 | 3.2k | Four silvermane badges |
| 30 | 6.4k | Eight silvermane badges |
| 40 | 12.8k | Two endotherm chitin and five silvermane insignia |
| 50 | 32k | Five endotherm chitin and eight silvermane insignia |
| 60 | 64k | 15 endotherm chitin and five silvermane medals |
| 70 | 128k | 28 endotherm chitin and seven silvermane medals |
And that’s everything we’ve got on Honkai Star Rail’s Asta. For more Hoyo fun, check out our Genshin Impact tier list, Genshin Impact codes, Genshin Impact banner, and Genshin Impact events guides.