Flins is a 5-star Electro Polearm character from the Lightkeepers whose kit is built around Lunar-Charged DMG. Rather than playing like a normal Electro carry, he enters Manifest Flame, converts his attacks to Electro, and uses Northland Spearstorm to unlock the cheaper Thunderous Symphony Burst. That interaction is the center of his rotation, so a good Flins build is less about stacking generic Electro bonuses and more about giving him enough ATK, CRIT, and Energy to keep those Lunar-Charged windows moving.
His team matters just as much as his personal build. Flins can convert Electro-Charged into Lunar-Charged on his own, but pairing him with Columbina and Ineffa gives the team more Lunar Reaction support, off-field damage, and additional Moonsign levels. Once that core is in place, the fourth slot can lean toward Sucrose's offensive support, Xilonen's healing and RES reduction, or Lan Yan's shielding.

How Should You Build Flins?
The easiest way to approach Flins is to treat his Elemental Burst as the centerpiece and build everything else around making that part of the kit stronger and easier to repeat. ATK does more than raise his regular damage: both Whispering Flame and Moonsign Benediction: Old World Secrets directly scale from his ATK. At 2,000 ATK, Whispering Flame reaches its 160 Elemental Mastery cap, while Old World Secrets reaches its maximum 14% Lunar-Charged Base DMG increase.
| Build Category | Recommendation |
|---|---|
| Role | On-field Electro / Lunar-Charged DPS |
| Best Weapon | Bloodsoaked Ruins |
| Alternative Weapon | Primordial Jade Winged-Spear |
| Energy Option | Favonius Lance |
| Best Artifact Set | 4-Piece Night of the Sky's Unveiling |
| Sands | ATK% |
| Goblet | ATK% |
| Circlet | CRIT Rate / CRIT DMG |
| Sub-stat Priority | ATK% > CRIT Rate / CRIT DMG > Energy Recharge |
| Talent Priority | Elemental Burst > Elemental Skill > Normal Attack |
| Lv. 90 Base HP | 12,491 |
| Lv. 90 Base ATK | 352 |
| Lv. 90 Base DEF | 809 |
| Ascension Stat | 38.4% CRIT DMG |
Do not read the stat order as a reason to ignore CRIT. Night of the Sky's Unveiling can supply a large amount of CRIT Rate while its effect is active, so the better approach is to check Flins's finished ratio after the set bonus is included instead of blindly forcing CRIT Rate onto every piece. Energy Recharge is the comfort stat here: it is useful because Flins wants to cast Bursts often, but sacrificing strong ATK and CRIT rolls just to overbuild ER works against the rest of his kit.
What Are His Best Weapons?

Bloodsoaked Ruins is the weapon that fits his kit most cleanly. Its 674 Base ATK and 22.1% CRIT Rate already cover two stats he wants, while the passive directly rewards the same Burst-to-Lunar-Charged loop he uses in combat. After an Elemental Burst, Lunar-Charged DMG increases by 36% for 3.5 seconds at R1, and triggering Lunar-Charged also grants 28% CRIT DMG for 6 seconds while restoring 12 Energy once every 14 seconds.
| Weapon | Lv. 90 Stats | Why Use It? |
|---|---|---|
| Bloodsoaked Ruins | 674 ATK, 22.1% CRIT Rate | Signature option. Directly buffs Lunar-Charged DMG, adds CRIT DMG, and restores Energy. |
| Primordial Jade Winged-Spear | 674 ATK, 22.1% CRIT Rate | Strong general 5-star alternative. Hits build ATK stacks, reaching up to 7 stacks, then grants an additional 12% DMG bonus. |
| Favonius Lance | 565 ATK, 30.6% Energy Recharge | Lower offensive ceiling, but useful when Burst consistency is the bigger problem. CRIT hits can generate particles and restore Energy. |
Primordial Jade Winged-Spear makes the most sense when it is already built on your account. It matches the signature weapon's Base ATK and CRIT Rate, and its stacking ATK passive works naturally with an on-field character who keeps attacking during Manifest Flame. The catch is that none of those bonuses specifically solve Flins's Lunar-Charged or Energy needs, so Bloodsoaked Ruins remains the more complete package for him.
Favonius Lance takes the opposite approach. Its 30.6% Energy Recharge and particle generation can make the rotation much more forgiving, but the lower Base ATK and lack of a direct offensive passive mean you are trading damage for consistency. If your Flins already cycles Thunderous Symphony without trouble, the higher-damage weapons are the better place to stay.
Why Is Night of the Sky's Unveiling His Recommended Artifact Set?

Night of the Sky's Unveiling lines up almost perfectly with what Flins is already trying to do. The 2-piece bonus gives 80 Elemental Mastery, while the 4-piece effect activates when nearby party members trigger Lunar Reactions and Flins is on the field. Gleaming Moon: Intent then grants 15% CRIT Rate at Nascent Gleam or 30% at Ascendant Gleam for 4 seconds, while different Gleaming Moon effects across the party can also increase Lunar Reaction DMG.
- Revelation's Toll: ATK%
- Vessel of Plenty: ATK%
- Crown of the Befallen: CRIT Rate or CRIT DMG
- Sub-stats: ATK% > CRIT Rate / CRIT DMG > Energy Recharge
The double-ATK setup also works neatly with Flins's passives. More ATK raises his normal offensive scaling while feeding Whispering Flame's Elemental Mastery conversion and Old World Secrets' Lunar-Charged Base DMG bonus. Once those needs are covered, CRIT becomes the main balancing act; just remember that the artifact set itself may already be contributing a sizable chunk of CRIT Rate during combat.
Which Talents Should You Level First?
Ancient Ritual: Cometh the Night should take the first share of your talent materials. Both the full Burst and the special Thunderous Symphony version are tied to this talent, and those attacks form the main Lunar-Charged damage window in his rotation. Ancient Rite: Arcane Light comes next because it controls Manifest Flame, the infused attack string, and Northland Spearstorm.
Pocztowy Demonspear is the lowest priority. Manifest Flame has its own Normal and Charged Attack multipliers inside the Elemental Skill talent, so pouring scarce books and weekly materials into the regular Normal Attack talent first gives much less value than finishing Burst and Skill. If resources are tight, there is no need to triple-crown him just because the full material total is available.
- 1st: Ancient Ritual: Cometh the Night — Elemental Burst
- 2nd: Ancient Rite: Arcane Light — Elemental Skill
- 3rd: Pocztowy Demonspear — Normal Attack
How Does Flins's Rotation Actually Work?
Pressing Ancient Rite: Arcane Light puts Flins into Manifest Flame for 10 seconds. His Normal and Charged Attacks become Electro DMG, his interruption resistance rises, and his Skill changes into Northland Spearstorm. Northland Spearstorm deals AoE Electro DMG and, more importantly, replaces his normal Burst with Thunderous Symphony for the next 6 seconds.
That gives him two different Burst routes. Ancient Ritual: Cometh the Night costs 80 Energy and deals an initial hit followed by multiple Lunar-Charged phases, while Thunderous Symphony costs only 30 Energy and delivers a shorter Lunar-Charged strike. Under Moonsign: Ascendant Gleam, nearby thunderclouds add further Lunar-Charged hits to either version, so setting up the team's Lunar-Charged reaction before Flins takes the field matters.
- Set up Ineffa's Elemental Skill so Birgitta and her shield are active.
- Use Columbina's Skill and Burst to establish Gravity Ripple and Lunar Domain.
- Use the fourth character's support abilities before switching to Flins.
- Cast Flins's Elemental Skill to enter Manifest Flame.
- Use Normal Attacks as needed, then cast Northland Spearstorm.
- Use Thunderous Symphony during its 6-second availability window.
- Keep attacking during Manifest Flame and use Northland Spearstorm again when its cooldown returns.
At C0, Northland Spearstorm has a 6-second base cooldown while Manifest Flame lasts 10 seconds, so two uses can fit into one field window when the rotation is handled cleanly. C1 lowers that cooldown to 4 seconds, which changes the rhythm considerably and creates room for another special Skill activation during the same form. If you specifically want to cast the full 80-Energy Burst instead, remember that using Northland Spearstorm temporarily replaces it with Thunderous Symphony.
What Are Flins's Best Teams?

The recommended teams all start with the same three-character core: Flins, Columbina, and Ineffa. Columbina keeps Hydro available through Gravity Ripple and creates Lunar Domain, while her Moonsign Benediction converts relevant reactions into their Lunar versions and raises the party's Moonsign. Ineffa brings Birgitta's off-field Electro attacks, a shield, another source of Lunar-Charged conversion, and an Elemental Mastery buff from her Burst.
This also means the fourth slot does not need to rebuild the team's reaction engine from scratch. It can focus on increasing Flins's damage or making his field time safer, which is why Sucrose, Xilonen, and Lan Yan all work for different reasons.
- Team 1 — Flins + Columbina + Ineffa + Sucrose: The first choice for a more offense-focused setup. Sucrose can group enemies, trigger Swirl, and share Elemental Mastery through Catalyst Conversion and Mollis Favonius. That EM support benefits a team already centered on Lunar reactions without taking much field time away from Flins.
- Team 2 — Flins + Columbina + Ineffa + Xilonen: A more comfortable version with healing and Elemental RES reduction. Xilonen's Source Samples can reduce the relevant RES of nearby enemies, while her Burst heals the active character when at least two Source Samples have changed Elemental Type. Her C2 adds another useful interaction for Electro characters by restoring 25 Energy and reducing Elemental Burst cooldown by 6 seconds.
- Team 3 — Flins + Columbina + Ineffa + Lan Yan: The shield-focused alternative. Lan Yan's Swallow-Wisp Shield scales from ATK and lasts 12.5 seconds, giving Flins more protection during his on-field window. Her Burst also pulls nearby enemies, and at C4 she gives nearby party members 60 Elemental Mastery for 12 seconds after using Lustrous Moonrise.
Sucrose is the natural starting point when you want more offensive support from the final slot, while Xilonen is easier to justify when healing and RES reduction matter more than extra EM sharing. Lan Yan loses some offensive support before C4, but her shield can make Flins much more comfortable when enemies would otherwise interrupt or force you to spend his short Manifest Flame window dodging.
Which Constellations Matter Most?
Flins works at C0, but his early constellations directly affect how his core loop feels rather than simply adding a small stat bump. C1 Part the Veil of Snow cuts Northland Spearstorm's base cooldown from 6 seconds to 4 seconds and restores 8 Energy when party members trigger Lunar-Charged, once every 5.5 seconds. That shorter cooldown fits especially well inside the 10-second Manifest Flame duration.
- C1 — Part the Veil of Snow: Northland Spearstorm cooldown becomes 4 seconds, and Lunar-Charged triggers can restore 8 Energy.
- C2 — The Devil's Wall: After Northland Spearstorm, the next Normal Attack adds 50% ATK as AoE Electro DMG considered Lunar-Charged DMG. Under Ascendant Gleam, Flins's Electro hits also reduce enemy Electro RES by 25% for 7 seconds.
- C3 — Stranger in the Night: Adds 3 levels to Ancient Ritual: Cometh the Night.
- C4 — Night on Bald Mountain: Gives 20% ATK and improves Whispering Flame to 10% of ATK, with its Elemental Mastery cap raised to 220.
- C5 — Exile's Shadow: Adds 3 levels to Ancient Rite: Arcane Light.
- C6 — Songs and Dances of Death: Elevates Flins's Lunar-Charged reaction DMG by 35%; under Ascendant Gleam, nearby party members also gain 10% elevated Lunar-Charged DMG.
C1 and C2 are the most noticeable early stopping points because they change either his rotation or the support attached to his attacks. C3 and C5 are straightforward talent-level increases, while C4 strengthens the ATK-to-EM relationship already built into his kit. C6 is the high-investment endpoint, pushing both his own Lunar-Charged reactions and, under Ascendant Gleam, the team's Lunar-Charged damage.
What Materials Do You Need for Flins and Bloodsoaked Ruins?

It is easier to pre-farm Flins when his character, talent, and signature weapon materials are kept in one place. The talent totals below assume all three combat talents are taken from Level 1 to Level 10, which is much more investment than most builds actually need because his Normal Attack is the lowest priority. Finish his Burst and Skill first if Crowns, Mora, or weekly materials are limited.
| Upgrade | Materials Required |
|---|---|
| Flins Lv. 1-90 | 2,092,600 Mora; 168 Frostlamp Flower; 3 Wanderer's Advice; 418 Hero's Wit; 1 Vajrada Amethyst Sliver; 9 Vajrada Amethyst Fragment; 9 Vajrada Amethyst Chunk; 6 Vajrada Amethyst Gemstone; 18 Broken Drive Shaft; 30 Reinforced Drive Shaft; 36 Precision Drive Shaft; 46 Precision Kuuvahki Stamping Die |
| All Three Talents Lv. 1-10 | 4,957,500 Mora; 3 Crown of Insight; 9 Teachings of Vagrancy; 63 Guide to Vagrancy; 114 Philosophies of Vagrancy; 18 Broken Drive Shaft; 66 Reinforced Drive Shaft; 93 Precision Drive Shaft; 18 Ascended Sample: Queen |
| Bloodsoaked Ruins Lv. 1-90 | 225,000 Mora; 15 Tattered Warrant; 23 Immaculate Warrant; 27 Frost-Etched Warrant; 23 Mistshroud Manifestation; 27 Mistshroud Plate; 41 Mistshroud Helmet; 5 Ember of Long Night Flint; 14 Afterglow of Long Night Flint; 14 Flare of Long Night Flint; 6 Blaze of Long Night Flint |
The biggest resource trap is treating every part of Flins's kit as equally urgent. His Burst should receive the premium talent materials first, followed by his Skill, while Bloodsoaked Ruins is only a separate farming commitment if you actually plan to use the signature weapon. Players already holding a leveled Primordial Jade Winged-Spear can build Flins without immediately taking on another full 5-star weapon grind.
Flins Build FAQ
Is Bloodsoaked Ruins required for Flins?
No. Bloodsoaked Ruins is the most complete match for his Lunar-Charged kit because it combines CRIT Rate, Lunar-Charged DMG, CRIT DMG, and Energy restoration, but Primordial Jade Winged-Spear remains a strong 5-star alternative. Favonius Lance can also work when the main problem is getting enough Energy to keep his special Burst rotation comfortable.
Why Is ATK So Important for Him?
ATK feeds several parts of his kit at once. Whispering Flame converts 8% of his ATK into Elemental Mastery up to 160, while Old World Secrets increases Lunar-Charged Base DMG by 0.7% for every 100 ATK up to 14%. Both effects reach their listed cap at 2,000 ATK, which is why ATK% remains valuable even after the basic damage scaling is considered.
Should you level Flins's Normal Attack?
Only after the important talents are handled. Manifest Flame's infused Normal and Charged Attacks use multipliers listed under Ancient Rite: Arcane Light, making the Elemental Skill far more relevant to his normal field rotation than Pocztowy Demonspear. For most builds, Burst first and Skill second is the cleaner use of talent books and weekly materials.
Which Team Should You Start With?
Flins + Columbina + Ineffa + Sucrose is the first recommended setup because the three-character Lunar-Charged core is backed by Sucrose's grouping and Elemental Mastery support. Xilonen is the stronger comfort swap when healing and RES reduction are more useful, while Lan Yan gives the team a shield and becomes more supportive at C4 thanks to her 60 Elemental Mastery party buff.
