Updated for Version “Luna VI“

Flins is a 5★ Electro Polearm character in Genshin Impact who deals significant Lunar-Charged damage on-field. Learn about Flins’s best builds, best weapons, best artifacts, and best teams in this quick guide.

Note that the information given may change if new discoveries are made. More extensive testing is in progress

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Credits to: cegewinne, acerbus114, and KQM Staff

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Character Overview

Playstyles

On-Field DPS

Flins is an on-field DPS unit that deals great Lunar-Charged damage via his Burst. He enters a special state through his Skill that converts his Normal and Charged Attacks to Electro and enables his short Burst (preferred over his longer normal Burst). This special Skill state ends if Flins swaps out, so he favors teammates who provide buffs or damage from off-field. He also has Moonsign mechanics and relies on at least one Nod-Krai teammate to unlock his full damage potential.

Lunar-Charged

Flins can deal direct Lunar-Charged damage from his Talents and Constellations (as opposed to reaction damage). For the purposes of this guide, direct Lunar-Charged damage refers to that which originates from his Talents and Constellations, while Lunar-Charged reaction damage refers to that which originates solely from triggering the Elemental Reaction.

For more information on the Lunar-Charged reaction, check out Ineffa’s Quick Guide.

Talents

Level and Talent Priority

Burst > Level 90 > Skill

Flins’s Elemental Burst makes up for the majority of his personal damage, so it should be prioritized first. 

Level 90 is recommended to maximize Flins’s Lunar-Charged reaction damage. Despite not affecting his direct Lunar-Charged damage, this is still a slightly higher damage increase than leveling his Skill. Leveling his Normal Attack Talent is mostly useless, as his Elemental Skill multipliers apply to the Normal and Charged Attacks used during his Skill state.

Leveling Flins to 100

Version Luna I introduces the new maximum Character Level: Level 100. Leveling characters from 90 to 100 gives them extra Base ATK, Base HP, and Base DEF. Additionally, it also increases the Level Multiplier of all Elemental Reactions, including Lunar-Charged.

Leveling Flins from 90 to 95/100 increases all of his damage, although with varying degrees of impact. Flins usually has around a 7% increase in total ATK going from Level 90 to 100. This benefits his direct Lunar-Charged and Electro damage (although the latter is only a small part of his damage).

Additionally, Flins’s Level Multiplier for his Lunar-Charged reaction damage improves by ~16%; his direct Lunar-Charged damage does not. Note that Lunar-Charged damage (both direct and reaction) does not improve based on the enemy’s DEF Multiplier in the damage formula.

Overall, Flins’s damage increases about 4-5% from Level 90 to 95, and another 4-5% from Level 95 to 100 (total about 8-10%). This is around the average value of leveling other typical ATK-scaling damage dealers.

Talent Overview

Constellations

Combos

At C0, Flins uses his special Skill and Burst twice per field time, with some Normal and Charged Attack weaving in between to fill downtime. Using a Normal Attack right after entering his Skill state generates more particles than immediately casting his special Skill.

Short or Long Burst?

In general, it is not recommended to use Flins’s normal Burst because of its longer cooldown, longer animation, and higher Energy cost, while not providing much better damage than using two short Bursts. However, with some extra Energy from Flins’s gear (e.g. Bloodsoaked Ruins, Engulfing Lightning), rich enemy HP particles, or his teammates (e.g. C2 Xilonen, Electro Traveler, Fischl, Ororon), he can use his normal Burst every 2 or 3 rotations for extra damage. Still, it is not something to normally account for.

E N1¹ E sQ 2[N4D] N2 E sQ N4D (N5) ¹N2 is also possible.

C0 Combo At C0, Flins should use his special Skill and Burst twice per field time and as early as possible to benefit from short-lived buffs. Within this 10-11s field time framework, this Normal Attack combo provides the highest MV (motion value) while also generating 5 Electro particles.  However, Flins’s Normal Attacks do not comprise a significant part of his damage output, so using different combos (such as N5D spam) can still yield similar results as long as Flins can proc his particle generation five times per Skill state. However, if Flins does not have issues meeting his ER requirements, and the team’s cooldown allows him to run faster rotations, cutting down on the last Normal Attacks can be worth it despite the decreased particle generation. The last 2 Normal Attacks of his final string (N4) will be out of Flins’s Skill state, but players can still execute them to catch his fifth Electro particle.

E N2 E sQ N4D N3 E sQ N4D N2 E sQ (N4)

C1+ Combo Flins’s C1 allows him to use an extra special Skill and Burst in his combo. The last 2 Normal Attacks of his final string (N5) will be out of Flins’s Skill state, but players can still execute them to catch his fifth Electro particle.

Artifacts

ER Requirements

Calcs for ER requirements can be found here (last updated for Version Luna V).

The table below shows the ER requirements for Flins to use his short Burst twice per field time at C0 (or thrice at C1+). The rough ER requirements needed to cast Flins’s normal Burst occasionally are included in the ERC spreadsheet linked above.

The following characters are assumed to hold Favonius weapons and trigger them during their field time:

• Electro Traveler
• Iansan
• Ororon
• Kuki Shinobu
• Xilonen
• Hydro teammates
• Non-Catalyst Anemo teammates

Electro Teammate	C0	C1+
Electro Traveler	100–105%	105–125%
Fischl / Ororon / Kuki	110–120%	115–135%
Other Electro	120–135%	130–145%

R1 Bloodsoaked Ruins decreases Flins’s ER requirements by around 30%.

The ERC spreadsheet linked above shows the rough ER requirements for Flins to normal Burst occasionally.

Use the Energy Recharge Calculator to determine exact requirements for your team and rotation. For more details on how Favonius weapons will affect your team, please use Ac1d’s Favonius Mastersheet.

Artifact Stats

Sands	Goblet	Circlet
ATK% > EM	ATK% > EM	CRIT DMG / CRIT Rate

Stat Priority: ER (until requirement) > CRIT > ATK% > EM > Flat ATK

ATK% performs better than EM on Flins because he tends to get a considerable amount of EM buffs from teammates and himself (A4 Passive). Flins scales the best with CRIT stats and prefers a CRIT ratio of 1 CRIT Rate to 2 CRIT DMG after accounting for buffs.

Electro DMG Bonus Goblets should be avoided since most of his damage comes from Lunar-Charged damage (which does not scale with Electro DMG).

For a better understanding of how to maximize Lunar-Charged damage, check this Lunar-Charged section from Ineffa’s Quick Guide.

Artifact Sets

4pc Night of the Sky’s Unveiling (NotSU)	Flins’s best artifact set. Flins is ideally played in a team where the Moonsign is Ascendant Gleam (Level 2), where the 4pc set effect gives him 30% CRIT Rate and gives all party members 10% Lunar Reaction DMG Bonus (including Lunar-Charged).
4pc Marechaussee Hunter (MH)	A considerable temporary option in teams with Furina. While performing not so far behind 4pc NotSU, 4pc MH and Furina limit his team options by requiring a healer to maintain the buffs. He also loses out on the teamwide Lunar Reaction DMG Bonus of 4pc NotSU.
4pc Thundering Fury (TF)	A very niche set to consider for Flins in teams with Fischl; 4pc TF reduces the cooldown of Flins’s normal Skill, which allows him to cut down the rotation length, thus increasing Fischl’s Oz uptime. This results in a slight team DPS increase, but it is not recommended when Flins is at C1+ due to Flins’s mandatory field time requirement with 3 instances of special Bursts.
4pc Gilded Dreams (GD)	A transitory set to use while farming for 4pc NotSU if you already have pieces at hand.
2pc Mixed Sets	Bonuses: ATK%, EM, ER 2pc mixed sets are generally not much different from 4pc GD. They can also be used when building towards a full 4pc set.

Weapons

This weapon list is not exhaustive. Use Genshin Optimizer to find out your best available Polearm option with your own artifacts and team buffs.

5★ Bloodsoaked Ruins	Flins’s signature and best weapon option. It provides high Base ATK, CRIT Rate, CRIT DMG, and Lunar-Charged DMG Bonus. Its Energy refund greatly reduces his ER requirements (by approximately 25-30%).
5★ Staff of the Scarlet Sands	Staff of the Scarlet Sands is Flins’s second best weapon option, which gives him plenty of CRIT Rate and an extra ATK buff based on his EM.  Flins can only stack the passive with his special Skill and have at most 2 stacks after the second special Skill use (at C0). Still, it performs well on him and becomes even better when the special Skill hits multiple enemies (which gives multiple passive stacks). EM main stats (Sands and Goblets) can be optimal with SoSS. Use the combination that gives you better substats (or consult Genshin Optimizer). A major downside of SoSS is its high CRIT Rate stat, which makes it slightly difficult to build around when also considering the 30% CRIT Rate from 4pc NotSU with a Moonsign of Ascendant Gleam (Level 2). Note that the ATK Bonus from this passive is not used in Flins’s A4 Passive where he gains an EM buff based on his ATK. Likewise, Flins’s A4 EM buff will not increase this weapon’s passive.
5★ CRIT Polearms	Fractured Halo, Staff of Homa, Symphonist of Scents, Lumidouce Elegy, Primordial Jade Winged-Spear (PJWS) Good 5-star options that can be used for their 5-star stats. Apart from PJWS, Flins cannot trigger the full passive of these Polearms.
5★ Vortex Vanquisher	Despite its reputation of being a “bad” weapon, Vortex Vanquisher performs decently well if Ineffa or another shielder is on the team.
5★ Skyward Spine, Engulfing Lightning	Engulfing Lightning allows Flins to use his normal Burst more frequently, but it is nothing to write home about. Both weapons get weaker with lower ER requirements.
4★ Deathmatch	Flins’s general best 4-star option, especially at high refinement where it can even compete with his other 5-star choices. However, its performance drops against 2 or more enemies.
4★ Ballad of the Fjords	Ballad of the Fjords performs slightly worse than Deathmatch (against one enemy) at equal refinements, as Flins can get an abundance of EM buffs from his teammates (Ineffa’s A4, 4pc SMS, Sucrose’s EM share, etc.) and himself (his A4, 2pc NotSU).
4★ Sacrificer’s Staff	At C0, an R1 Sacrificer’s Staff only slightly outperforms an R5 Tamayuratei in single-target fights, as Flins’s cooldowns limit him to a single passive stack. However, at C1+, he can consistently gain and refresh stacks with each special Skill cast. This allows the Staff to rival or even surpass R1 Deathmatch, particularly at higher refinements or in scenarios where Flins has high ER requirements.
4★ Tamayuratei no Ohanashi	This event-limited weapon performs similarly to R1 Ballad of the Fjords, making it one of his best 4-star weapon options if you have it. Tamayuratei is good for its ER secondary stat; its value diminishes when Flins has lower ER requirements (below 130%). Nonetheless, it gets points for being a lantern that Flins can carry around!
4★ Prospector’s Shovel	This Nod-Krai craftable Polearm is the best free and fully obtainable option for Flins, providing him up to 48% Lunar-Charged DMG Bonus at Ascendant Gleam.
4★ Missive Windspear	Missive Windspear’s performance is not too far off from Prospector’s Shovel. A choice if you do not want to spend billets on Prospector’s Shovel and lack other options.
4★ Favonius Lance	Favonius Lance gets an honorable mention for its particle generation and ability to enable Flins’s normal Burst once every 2 or 3 rotations (on top of the usual 2 short Bursts every rotation). However, it is still not recommended over the aforementioned options unless you just really want to see his aura-farming normal Burst animation.

Teams

Teambuilding

• Flins’s viable teams require a Nod-Krai teammate to achieve a Moonsign of Ascendant Gleam (Level 2), which fully unlocks his kit and 4pc NotSU’s set effect. Teams with Flins as the sole Nod-Krai character (with a Moonsign of Nascent Gleam) perform far worse.
• A team focused on the Lunar-Charged reaction maximizes his Burst damage.
• One of Flins’s teammates should hold 4pc Silken Moon’s Serenade (SMS) to buff Lunar reaction damage.
• Flins is Energy-hungry, so an Electro teammate significantly reduces his ER requirements.

Lunar-Charged

Lunar-Charged teams maximize Flins’s Burst damage and enable his A1 Passive. With the EM and Lunar Reaction DMG Bonus buffs his team provides, Flins also deals a fair amount of Lunar-Charged reaction damage on top of his direct Lunar-Charged damage.

Notable Teammates

Example Teams

This is not a comprehensive list of teams. The inclusion or exclusion of any given team does not necessarily reflect its power level.

This is the standard Lunar-Charged setup for Flins where all 3 teammates considerably buff him and buff each other. The Ineffa–Columbina duo deals significant off-field damage by themselves and are miles ahead of the next best options. Regardless, decent alternatives include Aino and Fischl.

If Columbina and Ineffa use their Bursts every other rotation (which is recommended), you should alternate them to keep the rotation length consistent. If at least one of them uses their Burst every rotation, Flins’s field time should be shortened by omitting the last few Normal Attacks. Additionally, if Sucrose is not on TTDS, switch to her at the end of each rotation to refresh VV’s RES Shred and her EM buff.

Sample Rotation (Columbina)
Ineffa E (Q)¹ > Columbina (Q)¹ E > Sucrose Q/ED² N1 > Flins combo > Sucrose N1 ED/C³

¹Alternate between their Bursts. Do not cast Ineffa’s Burst in the first rotation. Use Columbina’s Burst after her Skill in the first rotation.
²Use Sucrose’s Burst whenever available; otherwise, use her Skill.
³If neither Sucrose’s Burst nor Skill is available for the next rotation, use her Charged Attack instead.

Sample Rotation
Ineffa E(Q)¹ > Aino EQ > Sucrose ED(Q)¹ > Flins combo

¹Burst when available

Yelan and Mona are viable alternatives to Columbina if you have them. Ineffa should use 4pc Aubade of Morningstar and Moon while the Hydro teammate should hold 4pc SMS. Mona can use Favonius Codex to provide Energy, Prototype Amber to heal the team, or hold TTDS to further buff Flins.

Sample Rotation (Yelan)
Ineffa E(Q)¹ > Yelan EQ N1 > Sucrose ED(Q)¹ N1 > Flins combo

¹Burst when available

Sample Rotation (Mona)
Ineffa E (Q)¹ > Mona Q N4 E N1 > Sucrose ED (Q)¹ N1 > Flins combo

¹Burst when available

While Furina’s Common DMG% buff does not benefit Flins and Ineffa much, she can still be used for her good Hydro application and non-insignificant personal damage. Xilonen and Jahoda are the two most notable healers for the team, with Xilonen providing long-lasting RES Shred and Jahoda buffing the team with her EM and (at C6) CRIT buffs. However, Sucrose remains an optimal choice for the final slot, as her inclusion balances team-wide buffs with a streamlined rotation length.

Xilonen should use 4pc Instructor instead of 4p Scroll in this team since the EM buff is more impactful. Furina should also use her Skill every other rotation to allow a 16s rotation with Xilonen.

Sample Rotation (Xilonen)
Ineffa E(Q)¹ > Furina (ED)² Q > Xilonen EQ N2 > Flins combo

¹Burst when available
²Use Skill every other rotation

Sample Rotation (Jahoda)
Ineffa E (Q)¹ > (Jahoda E²) > Furina ED Q > Jahoda Q > Flins combo > Jahoda E

¹Burst when available
²Only do this on the first rotation if Jahoda is C6.

Fischl is a good option for Flins’s Electro teammate when Ineffa is not available. With Sucrose as the Hexerei teammate, Fischl is a very potent off-field damage dealer and buffer that can provide up to 180 EM to Flins and herself with full uptime.

This team usually runs a 17-18s rotation with Fischl using her Skill and Burst alternatively every rotation. Unconventionally, Flins can use 4pc TF to reduce his normal Skill’s cooldown, allowing the team to run 12s rotation to perfectly align with Oz uptime. This results in a slight team DPS gain; however, it only works for C0 Flins as he requires more field time at C1.

Sample Rotation (Standard)
Fischl E/Q > Columbina E (Q)¹ > Sucrose ED (Q)¹ N1 > Flins combo

¹Burst when available.

Sample Rotation (TF Flins)
Fischl E/Q¹ > Columbina E/Q¹ > Sucrose ED/Q² N1 > Flins E E N1 sQ N4D N5 E sQ N1

¹Alternate between Skill and Burst each rotation.
²Use Sucrose’s Burst whenever available; otherwise, use her Skill.

Durin is a good replacement for Sucrose with his RES Shred and personal damage. He also triggers Overloaded, which is useful when poise damage or blunt attacks are needed.

Fischl should use an R5 Sacrificial Bow to refresh her Skill’s cooldown, allowing herself to cast both her Skill and Burst every rotation for full Oz uptime.

Sample Rotation (R5 Sacrificial Bow Fischl)
Fischl E > Columbina E (Q)¹ > Durin 2[E]Q > Fischl N1 Q > Flins combo

¹Burst every other rotation

Sample Rotation (Other weapons)
Columbina E (Q)¹ > Durin 2[E]Q > Fischl N1 E/Q > Flins combo

¹Burst every other rotation

This team can run 2 different rotations depending on Jahoda’s Constellations. If she does not have C6, it is recommended to alternate between her Skill and Burst in order to run a short rotation. If Jahoda is C6, it is beneficial to have her full Skill be used every rotation. Fischl should equip R5 Sacrificial Bow to maintain her Oz uptime for the entire long rotation.

Sample Rotation (Short rotation)
Fischl N1 E/Q > Mona Q N4 E N1 > Jahoda 2[E]/Q > Flins combo

Sample Rotation (Long rotation)
Fischl E N1 > Mona Q N4 E N1 > Fischl N1 Q > Jahoda Q > Flins combo >Jahoda E

This Ineffa-less team uses an Electro buffer to maximize Flins’s personal damage. If necessary, Sucrose can be replaced with a sustain unit like Lan Yan, Jean, or Xilonen.

With Iansan, Flins can skip some of his Normal Attacks to frequently dash to maintain her ATK buff on his Burst, with some Normal Attacks occasionally being weaved in to generate Energy particles. Because his Normal Attacks do not constitute a large part of his damage, Flins’s damage output is still similar.

As for Sara, her Burst’s cooldown is 20s, so she should use it every other rotation to save time.

Sample Rotation (Iansan)
Aino EQ > Iansan E N1 Q > Sucrose ED > Flins E N1 E sQ D N3D N4D 2[D]¹ E sQ N4D N5

¹Dash to recharge Iansan’s ATK buff; use Flins’s special Skill immediately off cooldown afterwards

Sample Rotation (C2+ Sara)
Aino EQ > Sara E > Sucrose ED² > Sara C (Q)¹ > Flins combo

¹Burst every other rotation
²Wait until an Electro aura is applied before using her Skill

Flins’s ER requirement is low in this team thanks to Kuki’s particle generation. Lynette deals solid personal damage and further decreases Flins’s ER requirement with Favonius Sword. Heizou can use TTDS to further buff Flins, though the buff is only available every other rotation.

Sample Rotation (Lynette)
Aino EQ > Kuki (Q)¹ E > Lynette EQ > Flins combo

¹Burst when available

Sample Rotation (Heizou)
Aino EQ > Kuki (Q)¹ E > Heizou Q E > Flins combo

¹Burst when available

Fischl and Ororon provide off-field Electro damage and lower Flins’s ER requirement. Between the two, Fischl deals the most damage against a single target, while Ororon fares better against multiple targets.

Sucrose is a better buffer than Lan Yan if sustain is not a concern.

Sample Rotation (Fischl)
Aino EQ > Fischl N1 E/Q > Lan Yan 2[E] (Q)¹ > Flins combo

¹Burst when available

Sample Rotation (Ororon)
Aino EQ > Ororon E¹Q > Lan Yan 2[E] (Q)² > Flins combo

¹Ororon’s Skill can be used after Lan Yan to funnel particles to Flins when TTDS’s buff is unavailable
²Burst when available

Credits

Writer[s]: acerbus114
Contributors: caxia5, irokei, caramielle., pjeljr, baloopy, not.logic, ems, luke_260, luwunae

Team images made with the KQM portrait generator.