Quick Answer: Lauma (Dendro Catalyst) and Flins (Electro Polearm) are 5-star characters in Version 6.0, requiring Radiant Moonfly and Knuckle Duckle boss materials. Lauma prioritizes 800+ EM for Lunar-Bloom reactions, while Flins focuses on 2,200+ ATK and 60-80% CRIT Rate for Lunar-Charged damage.
Look, I've been covering Genshin character releases for years now, and Version 6.0's dual banner is shaping up to be one of the most mechanically interesting we've seen. Both Lauma and Flins introduce this new Lunar reaction system that's honestly pretty refreshing after months of standard elemental gameplay.
Character Kit Analysis
Flins - Electro Polearm DPS
Here's where things get spicy. Elemental Skill Ancient Rite: Arcane Light doesn't just give him Electro infusion—it completely transforms his kit for 6 seconds. We're talking about his skill becoming Northland Spearstorm with a tight 6-second cooldown and serious AoE coverage. But the real kicker? His burst morphs into Thunderous Symphony, this low-cost version that absolutely maximizes Lunar-Charged output.
Now, Passive Whispering Flame does something I haven't seen before—it converts ATK to EM (capped at 160 EM). Combined with Moonsign Benediction scaling Lunar-Charged damage off ATK and providing 14% bonus damage, this makes ATK% substats way more valuable than typical Electro DMG%. It's counterintuitive, but the math checks out.
Key Constellations worth your primos:
C1: Cuts skill cooldown to 4 seconds, tosses 8 energy every 5.5 seconds (+28.7% damage increase)
C2: Adds an extra Lunar-Charged instance on Normal Attacks plus 25% Electro RES shred (+22.9% over C1)
Lauma - Dendro Catalyst Support
L
lemental Skill Runo: Dawnless Rest of Karsikko (yeah, these Nod-Krai names are a mouthful) offers both Tap and Hold variants. Tap gives standard AoE Dendro, but Hold consumes Verdant Dew for significantly larger Lunar-Bloom damage. Both versions apply 25% Dendro/Hydro RES shred for 10 seconds at Level 10—that's substantial team support right there.
Her Passive Cleansing for the Spring provides 32% skill damage bonus at 800 EM (0.04% per EM point). But here's the game-changer: Light for the Frosty Night lets Bloom reactions actually CRIT with 15% Rate and 100% Damage. Finally, someone at HoYoverse listened to our complaints about Bloom scaling.
Constellation highlights:
C1: Healing based on 500% EM when Lunar-Bloom triggers (solid sustain option)
C2: Bloom/Hyperbloom/Burgeon damage increases by 500% EM, Lunar-Bloom by 400% EM (whale territory, but massive damage)
Boss Materials & Combat Strategy
Radiant Moonfly (Lauma Materials)
You'll find 
ghtbearing Wings/Scale-Feather total needed—standard 5-star requirements.
Three Forms Strategy: The fight cycles through three distinct phases. Melee Form is straightforward close-range combat. Green Butterfly phase covers ridiculous AoE areas—seriously, the hitboxes are generous. Orange Butterfly creates these persistent burning fields that'll melt your HP if you're not careful.
Combat Tips: Every attack telegraphs with a green flash—that's your dodge cue. I cannot stress this enough: bring strong healing or shields. The damage output is punishing, and those burning effects add serious DoT pressure. Focus on sustain over raw damage here.
Knuckle Duckle (Flins Materials)
Located in an open cave south of Clink-Clank Krumkake Craftshop, Nod-Krai. Dr
6 Precision Kuuvahki Stamping D-uck-ie total. (Yes, that's the actual name. No, I don't know why.)
Phase Management: Attack Phase shows a purple radar indicating impact radius—stay outside that zone or you're toast. Armor Phase spawns minion bots that you absolutely must eliminate to break the armor and create a stun window. Damage Window is your DPS check—use that stun period for maximum damage output.
Farming Efficiency: Both bosses cost 40 resin with 3-minute respawns. Total investment: 1,840 resin (46 fights) per character minimum. Plan accordingly.
Stat Priorities & Breakpoints
Flins Requirements
Primary Stats: ATK 2,200-2,500+, CRIT Rate 60-80%, CRIT DMG 180-200%+, ER 120-140%
His substat priority breaks the typical DPS mold: ER (to requirement) > CRIT Rate/DMG > ATK% > EM. That EM scaling from his passive makes it surprisingly valuable.
Artifacts: ATK%/EM Sands, ATK% Goblet, CRIT Circlet
Lauma Requirements
Primary Stats: EM 800+ (passive breakpoint), ER 160-180%, CRIT Rate 50%+, CRIT DMG 100%+
The 800 EM breakpoint is crucial for maximizing her passive bonus. Don't sleep on CRIT stats either—those Lunar-Blooms need to actually crit to justify the investment.
Substat Priority: EM > ER > CRIT Rate/DMG Artifacts: EM/ER Sands, EM Goblet, EM/CRIT Circlet
Artifact Sets & Weapons
Best-in-Slot Sets
Flins - Night of the Sky's Unveiling: 2pc gives +80 EM, 4pc grants CRIT Rate (15%/30%) and Lunar Reaction damage bonus when party members trigger Lunar Reactions. It's tailor-made for his kit.
Lauma - Silken Moon's Serenade: 2pc provides +20% ER, 4pc offers party EM buffs (60/120) and Lunar Reaction damage on Elemental damage. Perfect support synergy.
Alternative Sets
Flins: Gilded Dreams works well for EM/ATK buffs, or you can run 2pc ATK% + 2pc ATK%, or 2pc ATK% + 2pc ER% for budget builds.
Lauma: Deepwood Memories (30% Dendro RES shred), Flower of Paradise Lost (Bloom damage), or 2pc EM + 2pc EM combinations all perform decently.
Weapon Rankings
Flins Top Weapons:
Bloodsoaked Ruins (Signature): 674 Base ATK, 22.1% CRIT Rate, 36% Lunar-Charged damage + 28% CRIT DMG + 12 energy. It's expensive but undeniably his best option.
Staff of Homa: CRIT DMG substat plus HP-scaling ATK works surprisingly well
Prospector's Shovel (4★): Electro-Charged/Lunar-Charged damage boost makes this a solid F2P choice
Lauma Top Weapons:
Nightweaver's Looking Glass (Signature): 542 Base ATK, 264.6 EM, party EM buffs plus Bloom bonuses
Blackmarrow Lantern (4★): Achieves roughly 90% of signature performance at R5—incredible value
Sacrificial Fragments: High EM plus skill reset for extended RES shred uptime
Team Compositions
Flins Teams
Premium: Flins + Ineffa (Electro Support) + Yelan (Hydro) + Sucrose (VV) F2P:
Core requirements are pretty straightforward: Hydro for Electro-Charged → Lunar-Charged conversion, Anemo VV support for RES shred, and Electro battery for energy management.
Lauma Teams
Bloom: Lauma + Nilou + Nahida + Kokomi creates this dual-core Bountiful/Lunar-Bloom setup that's honestly pretty nuts Hyperbloom: Lauma + Neuvillette/Yelan + Ineffa/Raiden + Baizhu Burgeon: Lauma + Thoma + Yelan + Xingqiu
The flexibility here is impressive—she slots into most Dendro reaction teams without major adjustments.
Talent Priority & Pre-Farming
Talent Leveling
Flins: Burst > Skill > Normal Attack (10/10/6 recommended) Lauma: Skill > Burst > Normal Attack (10/10/6 recommended)
Weekly Materials:
Flins: 18x Ascended Sample: Queen (The Game Before the Gate)
Lauma: 18x Eroded Scale-Feather (Lord of Eroded Primal Fire)
Pre-Farmable Materials
Available Now: 418 Hero's Wit, 7,050,100 Mora, Elemental gems, Weekly boss materials, Crown of Insight per character
Version 6.0 Exclusive: Boss materials, Regional specialties (Frostcup Flower, Moonfall Silver), Enemy drops, Talent books (Vagrancy/Moonlight domains), New artifact sets
Total Resin Estimate: 5,000+ per character (1,840 boss materials + 1,200+ talents + 2,000+ artifacts). That's roughly 28-35 days of natural resin generation.
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Performance Benchmarks
Damage Metrics
Flins C0 + Signature: Around 35,000 DPS in optimal rotations—that's competitive with current meta DPS units. 4-Star Weapons: Achieve 75-85% of signature performance, which is honestly pretty reasonable Lauma Support Value: 40-80% Lunar-Bloom damage increase plus 60-120 party EM buff
Investment Priority
High Value: Character 80/90, Weapon 90, Talents 6→8, C1 constellations Diminishing Returns: Talents 9→10, weapon refinements beyond R1, perfect artifact substats
That C1 investment really is the sweet spot for both characters—significant power spike without breaking the bank.
FAQ
When do Lauma and Flins release? Version 6.0 Luna I drops September 10, 2025, with both on Phase 1 banners.
What can I pre-farm right now? Elemental gems, weekly boss materials, EXP books, Mora, and Crowns. Everything else requires Version 6.0 to unlock.
Are signature weapons worth the investment? They provide significant damage increases, but 4-star alternatives achieve 75-90% performance. Prospector's Shovel for Flins and Blackmarrow Lantern for Lauma are particularly strong budget options.
Most important constellations? C1 for both characters offers the highest value. Flins C1 gives +28.7% damage, while Lauma C1 adds healing utility that's genuinely useful.
Resin requirements for Day-1 builds? Expect 5,000+ resin per character—that's 28-35 days of natural generation. Consider resin refreshes if you want immediate builds.
Can they work together on the same team? They're honestly better on separate teams. Flins needs dedicated Hydro enablers, while Lauma focuses on Bloom reactions. Use them on different Spiral Abyss sides for maximum efficiency.