Flins, the Lightkeeper of Nod-Krai’s Final Night Cemetery in Genshin Impact, is a 5-star Electro polearm DPS who specializes in Lunar-Charged damage and on-field Electro application. Because his damage scales strongly with investment and he gains Crit DMG on ascension, having his materials ready is crucial if you plan to use him as a main carry.

This guide explains every material required to fully ascend Flins and max his combat talents, along with practical farming tips for each item.

Flins Overview and Total Material Needs

Flins is a 5-star Electro polearm user whose kit revolves around entering a Manifest Flame–style stance via his Skill and converting reactions into Lunar-Charged damage, making him a strong on-field Electro driver. He gains Crit DMG each time he ascends, reaching about 38.4% bonus Crit DMG at level 90, which makes full ascension especially rewarding for his personal damage.

To take Flins from level 1 to 90 and raise one combat talent from level 1 to 10, the following materials are needed; triple-crowning him means tripling the talent section:

• Mora (ascension only): 420,000.
  
• Electro gemstone line: Vajrada Amethyst (Sliver ×1, Fragment ×9, Chunk ×9, Gemstone ×6).
  
• Local specialty: Frostcup (or Frostlamp/Frostcup-type) Flower ×168 (Nod-Krai specialty for Flins).
  
• Boss material (world boss): Precision Kuuvahki Stamping Die (also listed as Stamping D-uck-ie in some sources) ×46.
  
• Common enemy drops (Nod-Krai mechanical line): Broken Drive Shaft ×18, Reinforced Drive Shaft ×30, Precision Drive Shaft/Precision Axle ×36.
  
• For one talent to level 10: 1,625,500 Mora, 6× Ascended Sample: Queen, domain talent books (region-specific set), plus 1 Crown of Insight.

Exact talent-book set names for Flins are not fully standardized across sources yet, so this guide focuses on confirmed quantities and sources rather than guessing specific book titles.

Flins Ascension Materials

Flins’s ascension path uses the Electro gemstone line (Vajrada Amethyst), a Nod-Krai local flower, a new Nod-Krai world boss material, and a new mechanical common drop line. Across all six ascensions, you need:

• Mora: 420,000.
• Vajrada Amethyst Sliver ×1, Fragment ×9, Chunk ×9, Gemstone ×6.
  
• Frostcup/Frostlamp Flower ×168.
  
• Precision Kuuvahki Stamping Die (or Stamping D-uck-ie) ×46.
  
• Broken Drive Shaft ×18, Reinforced Drive Shaft ×30, Precision Drive Shaft / Precision Axle ×36.

Vajrada Amethyst (Electro Gemstones)

Vajrada Amethyst is the standard Electro gemstone used by Electro characters like Flins.

You can farm it from:

• Classic Electro bosses: Electro Hypostasis and Thunder Manifestation drop Vajrada Amethyst at all rarities, scaling with boss level.
• New Nod-Krai bosses: some of the 6.0+ Electro-aligned bosses also drop Vajrada Amethyst alongside their unique material, letting you double-farm if they share drops with Flins’s boss.
  
• Crafting: lower-rarity Electro stones can be upgraded at the alchemy bench, and other elemental gems can be converted into Vajrada Amethyst with Dust of Azoth.

If you are pre-farming, focusing on Electro Hypostasis or Thunder Manifestation is still a safe and consistent option.

Frostcup / Frostlamp Flower (Local Specialty)

Multiple reliable sources list Frostcup Flower (sometimes called Frostlamp/Frostcup in early writeups) as Flins’s Nod-Krai local specialty. These are cold-region flowers found in the snowbound parts of Nod-Krai.

General farming characteristics:

• Region: Nod-Krai, especially northern isles and snowfield areas associated with the Final Night Cemetery and nearby coasts.
  
• Node type: a plant collectible similar to existing regional flowers; each node yields one or more flowers.
• Respawn: 48 hours like other local specialties.

Since detailed interactive maps are still being updated for newer regions, the safest approach is to:

• Use the Adventurer’s Handbook → Enemies/Resources if Frostcup Flower entries are present.
• Comb around the lighthouse and cemetery islands tied to Flins’s story, where guide authors consistently place farming routes in early infographics and videos.
  

Aim to clear full routes every two days and use co-op to access other players’ worlds once you have memorised your own circuit.

Precision Kuuvahki Stamping Die (World Boss Drop)

Flins’s unique boss material is Precision Kuuvahki Stamping Die, described as a drop from a new Nod-Krai mechanical-type world boss introduced in version 6.0. Early materials guides consistently cite this item as the primary boss drop needed to ascend Flins to level 90.

Key points:

• Source: new Nod-Krai Kuuvahki-type boss (a large clockwork/industrial enemy), which consumes 40 Resin per claim like standard bosses.
  
• Quantity: 46 total Stamping Dies are required for all ascensions.
  

Because this material is region-specific and Resin-gated, many players start farming this boss as soon as they unlock the corresponding waypoint, even before they own Flins.

Drive Shaft / Precision Axle Materials (Common Drops)

Flins needs a full line of mechanical drops that appear in several pre-release and post-release material lists: Broken Drive Shaft, Reinforced Drive Shaft, and Precision Drive Shaft/Precision Axle. These are obtained from new clockwork-style enemies in Nod-Krai.

Important details:

• Enemy type: Kuuvahki-style mechanical mobs introduced in Nod-Krai.
  
• Rarity progression:
• Broken Drive Shaft from low-level enemies.
• Reinforced Drive Shaft from mid-level or elite versions.
• Precision Drive Shaft / Precision Axle from high-level enemies or higher World Levels.
• Usage: the same line is used both for Flins’s ascension and his talent upgrades, so it is worth farming them steadily rather than only when you are short.

Clear any mechanical camps you encounter while exploring Nod-Krai and consider adding a short daily route focusing on the densest enemy clusters referenced in early farming guides.

Flins Talent Materials

Talent materials unlock the true power of Flins’s Lunar-Charged combat style, increasing the multipliers on his normal/charged strings, Skill stance, and powerful Burst.

Icy Veins lists the per-talent cost for Flins as:

• Mora: 1,625,500.
• Weekly boss material: Ascended Sample: Queen ×6.
• Domain talent books (region-specific set for Nod-Krai) in the usual 3/21/38 pattern (Teachings/Guide/Philosophies).
• Common materials: the same Drive Shaft/Axle line used for ascension, at increasing rarities.
• Special material: Crown of Insight ×1.
  

Tripling this cost gives you the approximate requirement to crown all three combat talents.

Domain Talent Books (Nod-Krai Set)

While different sites reference book names slightly differently, they agree that Flins uses the Nod-Krai talent-book set obtainable from a new Domain of Mastery.

General pattern (based on usual structure and current references):

• Domain: a Nod-Krai Domain of Mastery (often reported as being near or within the Lightless Capital / Nod-Krai mastery domain cluster).
  
• Schedule: the Flins-specific book set is available on two fixed weekdays plus Sunday, like all other regional books.
  
• Quantities per talent: 3× Teachings, 21× Guide, 38× Philosophies.

Until official English naming stabilizes, the safest approach is to check the in-game Talent interface for Flins, which shows exactly which set he uses, and then run that domain heavily on its open days.

Ascended Sample: Queen (Weekly Boss Drop)

For his weekly talent material, Flins uses Ascended Sample: Queen, dropped from a later-game weekly boss fight (commonly associated with a powerful Nod-Krai or Fontaine-era entity).

Key points:

• Quantity: 6 per talent, 18 total to triple-crown.
• Source: a specific weekly boss encounter unlocked through story or region progression; you can check the “Trounce Domains” tab once it appears.
  
• Flexibility: as with other weekly drops, Dream Solvent can usually convert among the boss’s different materials, which helps if you are unlucky.
  

Plan to fight this boss every week as soon as you unlock it, even before owning Flins, so you can accumulate Ascended Samples in advance.

Crowns of Insight and When to Use Them

Flins requires one Crown of Insight per talent to go from level 9 to level 10, so full triple-crowning needs three Crowns in total. These are among the rarest upgrade items in the game and come from:

• Limited-time flagship events, which usually offer one Crown in the event shop or reward track.
  
• Offerings to regional trees or statues in new regions when you hit specific level thresholds.

Given their scarcity, many players choose to crown Flins’s most impactful damage talent first (typically his Normal Attack or Burst, depending on how you play him), and may stop at level 9 for the others if Crowns are tight.

Flins is a high-investment Electro DPS whose Crit-focused ascensions and Lunar-Charged kit reward careful material planning. By understanding exactly which gemstones, flowers, mechanical parts, and boss drops he needs—and by folding these into your daily and weekly Resin usage—you can have everything ready when you finally add the Lightkeeper of Nod-Krai to your roster. With his materials in place, you can focus on optimizing builds and rotations instead of scrambling for missing items. For the best gaming experience, play Genshin Impact on BlueStacks!