A fiercely inquisitive and energetic young girl, she is the lead Researcher of Herta Space Station. Whether it is managing opinionated staff, or courteously but firmly responding to the Intelligentsia Guild, Asta handles it all effortlessly. After all... Commanding a space station is much easier than taking over a company!
To learn more about Asta check the sections below. Use the tabs to quickly switch to the kind of information you're looking for - kit, traces, review or build guides.
This character has no video guide yet.
Last review update
Patch 2.0
Last major build/calcs update
Patch 2.0
Last profile update*
September 15th, 2024
*Profile update means smaller edits to relics, stats, synergies or teams that don't require new calculations.
To learn more about Asta check the sections below. Use the tabs to quickly switch to the kind of information you're looking for - kit, traces, review or build guides.
Profile
Review
Build and teams
MoC/PF/AS Statistics
Calculations
Profile
Spectrum Beam
Single Target
Energy gain: 20
Break: 10
Meteor Storm
Bounce
Energy gain: 6
Break: 10
Astral Blessing
Support | 120 energy cost
Energy gain: 5
Break: -
Astrometry
Support
Energy gain: 0
Break: -
Miracle Flash
Energy gain: 0
Break: 20
Sparks
Ignite
Constellation
Star Sings Sans Verses or Vocals
Eidolon 1
When using Skill, deals DMG for 1 extra time to a random enemy.
Moon Speaks in Wax and Wane
Eidolon 2
After using her Ultimate, Asta's Charging stacks will not be reduced in the next turn.
Meteor Showers for Wish and Want
Eidolon 3
Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.
Aurora Basks in Beauty and Bliss
Eidolon 4
Asta's Energy Regeneration Rate increases by 15% when she has 2 or more Charging stacks.
Nebula Secludes in Cold Cosmos
Eidolon 5
Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.
Galaxy Dreams in Calm and Comfort
Eidolon 6
Charging stack(s) lost in each turn is reduced by 1.
Review
Universal support character,
Massive teamwide SPD boost with her Ultimate,
Strong Breaking for a support,
Able to support Dual Carry setups well,
Versatile playstyles and builds.
Charging stacks can be difficult to obtain due to randomness of her Skill’s Bounce,
Charging stacks can be difficult to maintain due to needing SP.
Asta is a universally applicable support specialising in increasing the whole team’s ATK and providing a massive teamwide SPD boost. Her Ultimate increases SPD by a flat 50. Asta also benefits from a fairly strong Skill that Bounces damage between enemies, allowing her to stack up her ATK bonus easily and deal tremendous Toughness damage for a support.
The Lead Researcher of the Herta Space Station has steadily become more and more recognised by the playerbase. Her kit is always appreciated and always powerful, and it’s become very clear that she is one of the most versatile and useful support units in the game, even despite her status as a fully free character.
Asta’s Talent has you gain up to 5 stacks of Charging. You gain a stack for every hit against a different enemy, and you get 2 stacks if an enemy you hit is weak to Fire. Each stack of Charging increases the entire team’s ATK by up to 14%, meaning the maximum total ATK boost is 70%. After her second turn in a fight, she’ll lose 3 stacks of Charging at the start of every turn.
This is a very powerful boost that is quite easy to maintain at higher stacks. Even if there is only a single enemy on the field, you will always get to have at least a permanent 14% ATK boost since Asta’s turns are spent either Basic Attacking or using her Skill, increasing to 28% permanently if the enemy is weak to Fire. This is also the amount you can expect if Asta is played exclusively SP positive. As soon as more enemies start showing up, Asta can start very easily racking up stacks of Charging each turn with her Skill.
Her Skill is a Bounce attack; a multi hit attack where you land the first hit against your primary target and the remaining hits can randomly land on any target, including the original one. This deals up to 50% ATK to the first enemy and Bounces 4 times, each Bounce hit also dealing 50% ATK. Bounce attacks will also deal Toughness damage on each hit, with the hits beyond the first dealing a reduced amount. This Skill will end up dealing a total of 90 Toughness damage across its 5 hits, the same as most single-target Ultimates but on a Skill.
With Asta’s Skill it becomes possible to gain many Charging stacks easily, though with a slight amount of randomness involved. If you’re against a full house of 5 enemies and are lucky, you can get 5 stacks of Charging by getting a hit off on each of them, even if none of them have a Fire Weakness. If any of them do have a Fire Weakness, it becomes a lot more consistent to gain 5 stacks, though as mentioned before, even a couple of stacks can already be significant.
This Skill even has a pretty impressive total multiplier of 250% ATK, particularly impressive against a single enemy. While Asta is not likely to be built specifically to deal damage, any damage stats that you do end up getting can actually end up being quite impactful in combat.
Asta’s Ultimate is extraordinarily potent, increasing the SPD of all allies by up to a flat 50 for 2 turns. Anyone who’s familiar with turn-based games understands that any amount of additional Speed can be devastatingly powerful, and this is no exception. An additional flat 50 SPD is a huge increase for every character, and all of them except for maybe Clara greatly appreciate this.
For many characters, SPD is of paramount importance as it streamlines gameplay and rotations, increasing overall ease of performance. At lower SPD values, some characters can range from ‘uncomfortable’ to ‘virtually unusable’, and getting more SPD is a tough ask as it’s one of the rarest substats in the game. Asta can completely alleviate this issue and then some.
However, this does not mean that the value brought by Asta’s Ultimate is in any way diminished by characters who already meet their necessary SPD thresholds. As this boost is teamwide, everyone benefits from this, including Asta herself. Against many high level enemies, without a sufficient amount of SPD you’ll be getting lapped several times over and might end up falling as a result — your support characters also need to be fast to keep up with your fast damage dealers and especially against the ever accelerating enemies.
At the higher end, for characters that are already exceeding their designated SPD values by a lot and reaching above 150, it is possible to exceed the 200 mark with Asta, thus transcending into double turn territory, something that is practically impossible to attain without Asta, as most character’s Base SPD values are just too low.
It is important to understand that you can end up fumbling Asta’s Ultimate somewhat; it’s not correct to call it ‘misusing’ but there is a rather steep prerequisite to understanding how to use this Ultimate optimally, and that’s actually knowing how SPD works. Many have tried to explain this before, and it’s a concept that can get very messy and complicated.
Instead, here’s the cheat sheet for using Asta’s Ultimate: go to your settings and enable ‘Display Action Values’ and you’ll see some numbers in the turn order that’ll essentially show how far away the next turn is. When the number is bigger, use the Ultimate, it’ll end up pushing your characters’ turns up more. There is also a peculiar interaction where if you use this Ultimate on a character’s turn before they act, they’ll end up getting an ‘extra turn of the SPD boost’ — it’s not actually an extra turn of it, it’s more of a safety measure to prevent you from completely wasting a turn of the SPD boost.
Aside from that one peculiarity, there’s really no wrong way of using Asta. Hell, you could decide to not care about optimising the Ultimate and she’ll still be one of the best supports in the game. None of her supportive benefits scale off of anything besides Trace level, meaning it’s up to the player how they want to build her; going for a more offensive playstyle with CRIT, or going full tank with 6000+ HP, it doesn’t matter one bit as long as she’s staying alive long enough to get her support out.
Asta’s Bonus Ability Traces can be quite useful. Her A2 gives her Basic ATK an 80% base chance to Burn enemies for 3 turns, making them take 50% of Asta’s Basic ATK in damage. This deals quite literally no meaningful damage, but it is a source of a debuff which can be potentially useful for certain character synergies like Guinaifen’s Firekiss. A4 will increase all allies’ Fire DMG by 18% while Asta is alive, which is a free and appreciated boost to Fire centric teams or damage dealers. A6 is probably the most generally useful one of the bunch as it increases Asta’s DEF by 6% per stack of Charging, potentially giving a 30% DEF boost for free, aiding in her survivability further.
Asta is already superb at E0, and while she doesn’t necessarily get a huge performance boost from Eidolons, she does get some pretty significant improvements to her overall usability. E1 will add an extra Bounce to her Skill, increasing the damage to 300% ATK, the Toughness damage to 105, and offering an extra chance to get more Charging stacks. E2 is a very big milestone as it will delay the decay of Charging stacks for 1 turn after using her Ultimate, letting her maintain higher stacks of Charging for longer without spending as much SP, and also allowing to nicely line up all of her benefits for big bursts from your damage dealers.
E4 will increase Asta’s Energy Regeneration Rate by 15% when she has 2 or more Charging stacks. This is easily her most impactful Eidolon, as this can allow for permanent Ultimate uptime with certain builds. E3 and E5 are very impactful for Asta as a support character, increasing her Charging stacks ATK boost to 15.4% per stack, and improving her Ultimate’s SPD boost to a flat 53 instead of 50. Even 3 extra SPD can be pretty significant so these ability level Eidolons should not be underestimated. E6 is the final comfort Eidolon, reducing the Charging decay to only 2 at the end of her turn instead of 3.
Asta is pretty much the gold standard for support characters. There’s almost no team that can’t benefit from her inclusion and she even enhances overall accessibility while doing all of the other stuff. Some of the best performing teams in the game utilise Asta, and that is highly unlikely to change any time soon. If you have not invested in your Asta yet, this is your official message to stop coping and just do it already.
No really, go do it. I’ll wait.
Honkai: Star Rail is a game where team building matters most and while our tier list takes the optimal setup into account, a lot of characters can work and do well - even those ranked lower - when you invest into them. Also for story or lower difficulties of Simulated Universe, you don't need to worry about ratings and tiers. You can safely clear that content even with F2P characters as long as you build your team correctly.
Available ratings:
MoC
PF
AS
MoC
PF
AS
Build and teams
The percentage numbers showcase the relative DPS increase when you take into account the set bonus only. For some characters there's no DPS (or its equivalent) available and in that case we listed the sets in the order of priority.
1
Increases SPD by 6%.
When the wearer uses their Ultimate on an ally, SPD for all allies increases by 12% for 1 turn(s). This effect cannot be stacked.
2
Increases SPD by 6%.
When the wearer uses their Ultimate on an ally, SPD for all allies increases by 12% for 1 turn(s). This effect cannot be stacked.
Increases Max HP by 12%.
When the wearer is hit or has their HP consumed by an ally or themselves, their CRIT Rate increases by 8% for 2 turn(s) and up to 2 stacks.
3
ATK increases by 12%.
The wearer's SPD increases by 6% and Basic ATK DMG increases by 10%.
4
Increases Break Effect by 16%.
When the wearer uses their Ultimate on an ally, Break Effect for all allies increases by 30% for 2 turn(s). This effect cannot be stacked.
1
Increases the wearer's Max HP by 12%. When the wearer's SPD reaches 120 or higher, all allies' ATK increases by 8%.
2
Increases the wearer's Effect RES by 10%. When the wearer's Effect RES is at 30% or higher, all allies' CRIT DMG increases by 10%.
3
Increases wearer's Energy Regeneration Rate by 5%. Increases DMG for all other allies with the same DMG Type as the wearer by 10%.
4
Increases the wearer's Energy Regeneration Rate by 5%. When the wearer's SPD reaches 120 or higher, the wearer's action is Advanced Forward by 40% immediately upon entering battle.
SPD (Until breakpoint) > HP = DEF > EFF RES% (30% If using Broken Keel)
HP: 3600 - 4400+
DEF: 900 - 1100+
SPD: 134 / 143 (Recommended) / 160+
ENERGY REGEN: 19.44%+
Talent = Ultimate > Skill > Basic
Ignite (A4) > Sparks (A2) > Constellation (A6)
The numbers show the percentage damage output increase/decrease compared to the Light Cone marked with 100%.
After the wearer uses attacks or gets hit, additionally regenerates 4/5/6/7/8 Energy. This effect can only be triggered 1 time per turn.
Source: Stellar Warp
Increases the wearer's Break Effect by 28/35/42/49/56%. When the wearer attacks, additionally regenerates 4/5/6/7/8 Energy. This effect can only be triggered 1 time per turn.
Source: Stellar Warp
Upon battle entry, if an ally deals the same DMG Type as the wearer, DMG dealt increases by 12/15/18/21/24%.
Source: Stellar Warp
At the start of the battle and whenever the wearer's turn begins, one of the following effects is applied randomly: All allies' ATK increases by 10/12.5/15/17.5/20%, all allies' CRIT DMG increases by 12/15/18/21/24%, or all allies' Energy Regeneration Rate increases by 6/7.5/9/10.5/12%. The applied effect cannot be identical to the last effect applied, and will replace the previous effect. The applied effect will be removed when the wearer has been knocked down. Effects of the similar type cannot be stacked.
Source: Nameless Glory
When the wearer uses their Ultimate, all allies' actions are Advanced Forward by 16/18/20/22/24%
Source: Stellar Warp
The teams in the section are generated based on the current Memory of Chaos data we have gathered. If you want to see more statistics about the mode, check the MoC/PF/AS Statistics tab.
Asta guide videos aren't available yet.
MoC/PF/AS Statistics
This section contains information about Asta performance in the latest Memory of Chaos cycle (2.4), latest Pure Fiction (2.4) and the latest Apocalyptic Shadow (2.4), and the commonly used Relics and Cones in both modes. The page will be automatically updated every 2 weeks once enough data is gathered in the current cycle.
If you want to share your clear information with us, you simply need to fill the form below and provide us with your UID and make your Hoyo profile public - we will automatically parse the MoC/PF clear information from your profile after that!
MoC/PF/AS Stats FormCharacters are ranked with appearance rate, which is how often a character was used in Memory of Chaos by the players who we have scanned, regardless of whether they own the character or not. Ownership rate currently cannot be obtained.
Characters are ranked with appearance rate, which is how often a character was used in Pure Fiction by the players who we have scanned, regardless of whether they own the character or not. Ownership rate currently cannot be obtained.
Characters are ranked with appearance rate, which is how often a character was used in Apocalyptic Shadow by the players who we have scanned, regardless of whether they own the character or not. Ownership rate currently cannot be obtained.
This section lists the characters that were most commonly paired with Asta in the current phase of Memory of Chaos.
This section lists the characters that were most commonly paired with Asta in the current phase of Pure Fiction.
This section lists the characters that were most commonly paired with Asta in the current phase of Apocalyptic Shadow.
Eidolons data comes from players we have scanned who used Asta in the current MoC cycle (67), in the current PF cycle (158) or in the current AS cycle (171) and had the character placed in their Profile.
1%
99.99 cyc.Eidolon 0
1%
99.99 cyc.When using Skill, deals DMG for 1 extra time to a random enemy.
1%
99.99 cyc.After using her Ultimate, Asta's Charging stacks will not be reduced in the next turn.
10%
99.99 cyc.Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.
25%
99.99 cyc.Asta's Energy Regeneration Rate increases by 15% when she has 2 or more Charging stacks.
10%
99.99 cyc.Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.
88.67%
9 cyc.Charging stack(s) lost in each turn is reduced by 1.
Light Cones are ranked with usage rate among the players we have scanned who used Asta in the current MoC cycle (67), in the current PF cycle (158) or in the current AS cycle (171) and had the character placed in their Profile.
38.79%
99.99 cyc.After the wearer uses attacks or gets hit, additionally regenerates 4/5/6/7/8 Energy. This effect can only be triggered 1 time per turn.
Source: Stellar Warp
38.55%
99.99 cyc.When the wearer uses their Ultimate, all allies' actions are Advanced Forward by 16/18/20/22/24%
Source: Stellar Warp
11.33%
99.99 cyc.Increases the wearer's Break Effect by 28/35/42/49/56%. When the wearer attacks, additionally regenerates 4/5/6/7/8 Energy. This effect can only be triggered 1 time per turn.
Source: Stellar Warp
7.48%
9 cyc.Upon battle entry, if an ally deals the same DMG Type as the wearer, DMG dealt increases by 12/15/18/21/24%.
Source: Stellar Warp
3.86%
99.99 cyc.Increases the wearer's Break Effect by 60/70/80/90/100%. After the wearer uses their Ultimate, increases all allies' DMG by 24/28/32/36/40%, lasting for 3 turns. Should the wearer's Break Effect exceed or equal 150%, 1 Skill Point will be recovered. At the start of each wave, immediately regenerates 10/12.5/15/17.5/20 Energy for all allies. Effects of the same type cannot stack.
Source: Event Warp (limited)
Relic Sets are ranked with usage rate among the players we have scanned who used Asta in the current MoC cycle (67), in the current PF cycle (158) or in the current AS cycle (171) and had the character placed in their Profile. The results are limited to top 5 combinations. Flex means 2 random Relic pieces that don't combine into a Set.
81.19%
Increases SPD by 6%.
When the wearer uses their Ultimate on an ally, SPD for all allies increases by 12% for 1 turn(s). This effect cannot be stacked.
3.86%
Increases Break Effect by 16%
Increases the wearer's Break Effect by 16%. When the wearer inflicts Weakness Break on an enemy, regenerates 3 Energy.
Increases SPD by 6%.
When the wearer uses their Ultimate on an ally, SPD for all allies increases by 12% for 1 turn(s). This effect cannot be stacked.
3.86%
Reduces DMG taken by 8%.
At the beginning of the turn, if the wearer's HP is equal to or less than 50% of their Max HP, restores HP equal to 8% of their Max HP and regenerates 5 Energy.
Increases SPD by 6%.
When the wearer uses their Ultimate on an ally, SPD for all allies increases by 12% for 1 turn(s). This effect cannot be stacked.
3.86%
Increases Wind DMG by 10%.
After the wearer uses Ultimate, their action is Advanced Forward by 25%.
3.62%
Increases SPD by 6%.
When the wearer uses their Ultimate on an ally, SPD for all allies increases by 12% for 1 turn(s). This effect cannot be stacked.
Increases DMG dealt to enemies with debuff by 12%.
Increases CRIT Rate by 4%. The wearer deals 8%/12% increased CRIT DMG to enemies with at least 2/3 debuffs. After the wearer inflicts a debuff on enemy targets, the aforementioned effects increase by 100%, lasting for 1 turn.
50.12%
Increases the wearer's Effect RES by 10%. When the wearer's Effect RES is at 30% or higher, all allies' CRIT DMG increases by 10%.
19.51%
Increases the wearer's Energy Regeneration Rate by 5%. When the wearer's SPD reaches 120 or higher, the wearer's action is Advanced Forward by 40% immediately upon entering battle.
11.57%
Increases wearer's Energy Regeneration Rate by 5%. Increases DMG for all other allies with the same DMG Type as the wearer by 10%.
7.48%
Increases the wearer's Break Effect by 16%. When the wearer's SPD reaches 145 or higher, the wearer's Break effect increases by an extra 20%.
3.86%
Increase the wearer's SPD by 6%. When the wearer hits enemy targets with Fire Weakness, the wearer's Break Effect increases by 40%, lasting for 1 turn(s).
Relic Stats are shown based on the Relics used by the players we have scanned who used Asta in the current MoC cycle (67), in the current PF cycle (158) or in the current AS cycle (171) and had the character placed in their Profile.
Calculations
Asta calculations aren't available yet.
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Asta's energy economy depends on many factors such as her rotation, Eidolons, and getting hit. Specifically, her Eidolon 1 gives 6 extra energy per Skill, Eidolon 4 grants 15% Energy Recharge, and her Eidolon 6 makes her E4 uptime more consistent. The choice of your Planar set depends on the team you use Asta in - Broken Keel for Crit teams, Penacony for Fire teams, and Fleet for DoT teams.