Clair Obscur: Expedition 33 has captivated RPG fans with its stunning art, deep turn-based combat, and compelling cast. Among the expedition’s members, Lune, the barefoot elemental mage, shines as a versatile powerhouse. Known for her academic drive and connection to the Paintress, Lune can heal, debuff, or obliterate enemies. One build, however, has players buzzing across gaming communities: the Oneshot Lune Build, a setup so potent it can annihilate bosses in a single turn. This guide explores crafting this overpowered strategy, diving into Lune’s mechanics, optimal skills, weapons, and team synergy to unleash her full potential.

Lune’s Role and Elemental Mechanics

Lune joins the party early alongside Gustave, bringing a unique system: Elemental Stains. These Fire, Ice, Earth, Lightning, and Light Stains are generated and consumed through skills, amplifying damage, adding hits, or reducing Action Point (AP) costs. Opposing elements, like Ice boosting Fire, create strategic depth, making Lune adaptable as a healer, debuffer, or damage dealer. The Oneshot Build centers on her late-game skill Elemental Genesis, which consumes four unique Stains (or Light Stains) to unleash catastrophic elemental damage. By maximizing critical chance, AP generation, and Stain synergy, this build turns Lune into a boss-destroying force, capable of millions in damage per turn.

Building the Oneshot Lune

Crafting this OP build requires optimizing Lune’s weapon, skills, Pictos, Luminas, attributes, and party composition. Here’s how to make it happen.

1. Weapon: Kralim for Stain Mastery

The Kralim is Lune’s ideal weapon, found in Act 1’s Spring Meadows or through side quests. Its passives are perfect for the Oneshot strategy:

Random Stain Generation: Starts combat with two random Stains, speeding up the setup for Elemental Genesis.
AP Efficiency: Lowers AP costs for high-damage skills, enabling skill chains without depletion.
Scaling: Boosts Vitality and Agility, enhancing Lune’s survivability and turn frequency.

Upgrade Kralim to Level 10 to unlock reduced AP costs for multi-element skills. If Kralim isn’t accessible early, Scaverim works as a substitute, offering S-rank Vitality scaling, a 50% damage boost, and Dark Stain generation for up to 300% skill amplification.

2. Key Skills: Setting Up the Nuke

The build hinges on Elemental Genesis, supported by skills that generate Stains and manage AP. Here’s the optimal loadout:

Elemental Genesis: Consumes four unique Stains (or Light Stains) for massive AoE damage, hitting for 50 million+ with proper setup.
Elemental Trick: Generates four Stains if Lune lands critical hits on all attacks, ensuring Elemental Genesis readiness.
Electrify: A low-cost Lightning skill that generates two Lightning Stains and exploits enemy weaknesses.
Immolation: Applies three Burn stacks and a Fire Stain, synergizing with Ice Stains and enabling Burn-based combos.
Thermal Transfer: Deals Ice damage and grants 4 AP if the target is Burning, critical for AP sustainability.
Revitalization: Generates Light Stains while healing the party, offering a safety net in tough fights.

These skills balance Stain generation, AP management, and damage, allowing Lune to unleash her ultimate skill quickly.

3. Pictos and Luminas: Boosting Criticals and AP

Pictos and Luminas enhance Lune’s stats and abilities. Prioritize those that improve critical chance, AP generation, and Stain synergy:

Critical Burn: Increases critical chance by 25% against Burning enemies, ensuring Elemental Trick reliability.
Cheater: Grants two consecutive turns, doubling setup speed for Elemental Genesis.
Energising Start: Provides extra AP at combat start, enabling immediate use of Electrify or Immolation.
Dodger: Awards 1 AP per perfect dodge (once per turn), leveraging Lune’s Agility.
Burn Affinity: Boosts damage by 25% against Burning enemies, amplifying Elemental Genesis.

Add a defensive Picto like Healing Fire, which restores 25% health when attacking Burned enemies, to keep Lune alive during setup.

4. Attributes: Critical Chance and Durability

Lune’s attributes should maximize critical hits and survivability:

Luck (Primary): Boosts critical chance to near 100% with Critical Burn, ensuring Elemental Trick consistency.
Vitality (Secondary): Increases health and synergizes with Kralim, making Lune durable.
Agility: Speeds up turns, letting Lune act before enemies or allies.
Defense: A small investment to mitigate damage, especially on Expert difficulty.

Aim for 75% critical chance naturally, relying on Critical Burn for the rest. Endgame, target 99 points in Luck and Vitality, with 50-60 in Agility.

5. Team Synergy: Amplifying Damage

The build excels with teammates who apply Burn, Marks, and buffs. Recommended allies include:

Maelle: Her Medalum weapon and Swift Stride apply Burn and enter Virtuose Stance. Skills like Spark stack Burn for Lune’s Thermal Transfer.
Verso: His Simoso weapon applies Marks with Marking Shot, boosting damage on Marked targets. Defiant Strike adds Vulnerability.
Sciel: Her All Set and Fortune’s Fury double party damage, making Lune’s nuke deadlier. Chation enhances Burn in Twilight state.

Maelle and Verso set up Burn and Marks, Sciel buffs, and Lune delivers the finishing blow with Elemental Genesis.

Executing the Oneshot

Here’s the combat flow for a boss fight:

Turn 1 (Setup): Maelle uses Spark or Verso casts Marking Shot to apply Burn and Mark. Sciel uses Fortune’s Fury for a damage buff. Lune casts Elemental Trick, landing critical hits to generate four Stains.
Turn 2 (Nuke): With Cheater, Lune takes another turn, casting Elemental Genesis to deal massive damage. If the boss survives, use Thermal Transfer on a Burning target to regain AP and follow with Electrify.

For mobs, swap Elemental Genesis for Hell or Wildfire to clear groups, saving AP for bigger fights.

Early-Game Options

In Act 1 or 2, the full build may be inaccessible. Use Lighterim (Spring Meadows), which reduces Fire skill AP costs and boosts Fire damage by 20% at Level 10. Skills like Immolation, Mayhem, and Thermal Transfer stack Burn and generate Light Stains. Transition to the Kralim build in Act 3 or New Game+.

Challenges and Tips

AP Management: High-AP skills require perfect dodges and Thermal Transfer. Use Energising Start to avoid stalling.
Critical Chance: Below 100% critical chance, Elemental Trick may fail. Stack Luck and Critical Burn early.
Enemy Resistances: Some enemies absorb elements. Keep Mayhem or Hell as backups.
Expert Difficulty: Enemies hit harder. Boost Vitality and use Healing Fire for survivability.

Why This Build Dominates

The Oneshot Lune Build is OP due to Elemental Genesis’s uncapped damage, amplified by critical hits, Burn synergy, and buffs. Community discussions highlight its ability to deal 50 million+ damage, trivializing bosses like the Lampmaster. Its flexibility—handling mobs with AoE or healing when needed—makes it ideal for all difficulties.

Conclusion

Lune’s Oneshot Build elevates Clair Obscur: Expedition 33’s mage into a game-breaking force, ending fights with one devastating blow. With Kralim, Elemental Genesis, and strategic team synergy, you’ll dominate the Continent’s challenges. Whether tackling Act 3 or New Game+, this build ensures Lune shines as the expedition’s heart. Experiment, tweak, and watch enemies fall to her elemental might.