Genshin Lightkeeper Floor 12-1-2 Guide: 2 F2P Teams (2026)

Why This Boss Wastes Your Time

Floor 12-1-2 features enemy levels 95-100. When the Lightkeeper's first HP bar depletes, it activates Wild Hunt instead of dying, summoning Wilderness Exiles and absorbing their life force to restore health. Base HP: 1,609,878 (human form). Effective HP: 3,219,756 with Ascendant Gleam mechanics—or 5,448,306 without proper Moonsign activation.

This revival wastes 25-40 seconds per cycle. Traditional hypercarry strategies fail against this time drain.

Wilderness Exile Recovery System

Summoned Exiles don't die at zero HP—they enter Grief-Stricken state with gray recovery bars. Without quick elimination, they fully recover and continue supporting HP restoration.

Ascendant Gleam attacks force immediate Grief-Stricken and prevent recovery, but most F2P teams lack consistent access. Displacement strategies are superior.

Chamber Structure and Time Pressure

First Half Wave 1:

• Perpetual Mechanical Array x1
• Enters Absolute Defense, summons Ruin Sentinels
• Defeat enhanced Sentinel (yellow glow) to remove invincibility

Second Half:

• Wave 1: Wilderness Exile x2
• Wave 2: Battle-Hardened Lightkeeper x1

Star Requirements:

• 1★: >180 seconds remaining
• 2★: >300 seconds remaining
• 3★: >420 seconds remaining

Perpetual Array consumes 60-90 seconds, leaving 90-120 seconds for Lightkeeper while maintaining 3-star status.

Understanding Displacement Mechanics

Launch: Vertical force lifting enemies (Jean's Gale Blade, Anemo Traveler's Palm Vortex)

Displacement: Horizontal/controlled movement (Sucrose's pull, Venti's vortex)

Knockback: Brief backward force (Overloaded, Claymore Charged Attacks)

Poise System

Every enemy has hidden poise determining displacement resistance. Lightkeeper has moderate poise—resists weak knockback but vulnerable to sustained Anemo abilities.

Displacing during Grief-Stricken transition prevents Wild Hunt summoning, eliminating HP restoration.

F2P Displacement Characters

Guaranteed:

• Anemo Traveler: Palm Vortex (5s cooldown)
• Sucrose: Astable Anemohypostasis Creation (groups enemies)

5-Star Alternatives:

• Jean: Strongest single-target launch
• Venti: Powerful vortex
• Kazuha: Mid-air displacement
• Xianyun: Vertical launch

F2P Setup #1: Xiangling National Variant

Xiangling-Xingqiu-Bennett-Sucrose leverages 75% Lunar Reaction DMG bonus for Vaporize.

Team Roles

Xiangling (Main DPS): Triggers Vaporize with Pyronado, benefits from Bennett ATK buff

Xingqiu (Sub-DPS): Applies Hydro with Raincutter, enables Vaporize, provides damage reduction

Bennett (Support): Buffs ATK with Fantastic Voyage, heals, batteries Xiangling

Sucrose (CC/VV): Displaces Lightkeeper, reduces Pyro/Hydro RES (VV 4pc), shares EM

Artifacts

Xiangling: 4pc Emblem | ATK% Sands, Pyro Goblet, CRIT Circlet | 160-180% ER

Xingqiu: 4pc Emblem | ATK% Sands, Hydro Goblet, CRIT Circlet | 180-200% ER

Bennett: 4pc Noblesse | ER/HP% Sands, HP% Goblet, Healing/HP% Circlet | 200-220% ER

Sucrose: 4pc VV | EM/EM/EM | 160-180% ER

Talent Priority

Minimum (3-star capable):

• Xiangling: Burst 8, Skill 6
• Xingqiu: Burst 8, Skill 6
• Bennett: Burst 6
• Sucrose: Skill 6, Burst 6

Recommended:

• Xiangling: Burst 9-10 (crown priority)
• Xingqiu: Burst 9, Skill 8
• Bennett: Burst 8-9
• Sucrose: Skill 8, Burst 8

Character levels: 80/90 for DPS, 70/80 minimum for supports.

Rotation

Pre-Chamber: Funnel energy to Xiangling/Xingqiu by defeating Wave 1 Exiles with Bennett Skill and Sucrose Normal Attacks. Ensure all Bursts ready.

Opening (0-15s):

1. Bennett Burst → ATK buff
2. Sucrose Skill → VV shred
3. Xingqiu Burst → Rain Swords
4. Xiangling Burst → Vaporize
5. Xiangling Skill (Guoba)
6. Sucrose Burst → maintain VV

Mid-Fight (15-45s): 7. Bennett Skill (2-3x) → Pyro particles 8. Xingqiu Skill → Hydro particles 9. Sucrose Normal Attacks → Swirl 10. Monitor Lightkeeper HP <10%

Phase Skip (45-50s):

11. At <10% HP, prepare Sucrose Skill
12. When Grief-Stricken animation starts (model glows), cast Sucrose Skill immediately
13. Displacement interrupts Wild Hunt, prevents Exile spawn
14. Continue DPS without HP restoration

Second Phase (50-75s): 15. Reapply Bennett Burst 16. Refresh Xingqiu Burst (180%+ ER) 17. Recast Xiangling Burst 18. Maintain Sucrose VV with Skill every 5s

Energy Management

• Xiangling: 160-180% ER with Bennett battery. Catch Guoba's chili for energy.
• Xingqiu: 180-200% ER. Sacrificial Sword for double Skill.
• Bennett: 200-220% ER. Prioritize ER Sands.
• Sucrose: 160-180% ER. Sacrificial Fragments for double Skill.

Funnel particles: switch to energy-needing character when particles generate.

Substitutions

No Xingqiu: Collei for Dendro/Burning. 25% damage decrease.

No Sucrose: Anemo Traveler (lacks EM sharing, needs precise timing).

No Bennett: Thoma for Pyro Resonance/shielding (significantly longer clears).

F2P Setup #2: Electro-Charged Variant

Collei-Xingqiu-Lisa-Sucrose for players using Xiangling/Bennett in first half. Leverages Electro-Charged and 75% Lunar Reaction DMG.

Team Synergy

Collei: Applies Dendro with Floral Brush/Trump-Card Kitty, triggers Bloom

Xingqiu: Primary damage via Raincutter, enables Electro-Charged

Lisa: Applies Electro with Violet Arc/Lightning Rose, triggers Electro-Charged, provides 15% DEF shred (A4)

Sucrose: Displaces, reduces Electro/Hydro RES (VV), groups enemies

Why This Works Across Chambers

• Flexible reactions: Electro-Charged, Bloom, Hyperbloom
• Sustained off-field damage
• Built-in survivability (Xingqiu damage reduction)
• Multi-element energy generation

Artifacts & Weapons

Collei: 4pc Deepwood/Instructor | ER Sands, Dendro Goblet, CRIT Circlet | Favonius Warbow/Elegy

Xingqiu: 4pc Emblem | ATK% Sands, Hydro Goblet, CRIT Circlet | Sacrificial Sword (R3+)/Favonius

Lisa: 4pc Thundering Fury/Gilded Dreams | ER/EM Sands, Electro Goblet, CRIT Circlet | Thrilling Tales/Favonius Codex

Sucrose: 4pc VV | EM/EM/EM | Sacrificial Fragments/Thrilling Tales

Combat Rotation

Wave 1 - Exiles (0-20s):

1. Collei Skill → Dendro
2. Xingqiu Burst + Skill → Rain Swords
3. Lisa Burst → Electro field
4. Sucrose Skill + Burst → group/Swirl
5. Defeat Exiles, build energy

Wave 2 - Opening (20-35s): 6. Collei Burst → Dendro 7. Xingqiu Skill (double if Sacrificial procs) 8. Lisa Skill (hold 3 stacks if time permits) 9. Sucrose Skill → VV shred 10. Xingqiu Normal Attacks

Mid-Fight (35-55s): 11. Rotate: Collei Skill → Lisa Skill → Sucrose Skill 12. Maintain Xingqiu Rain Swords 13. Monitor HP approaching depletion

Phase Skip (55-60s): 14. At <10% HP, position near Lightkeeper 15. Watch Grief-Stricken animation (model glows, kneels) 16. Cast Sucrose Skill immediately 17. Displacement interrupts Wild Hunt 18. Continue DPS

Second Phase (60-90s): 19. Refresh all Bursts 20. Maintain elemental rotation 21. Focus damage during attack recovery windows

Positioning Tactics

Optimal:

• 3-5 meters from Lightkeeper during transition
• Slightly to side (not directly front)
• Avoid arena edges (wall physics bugs)

Timing Cues:

• HP bar flashes at zero
• Model emits white/blue glow
• Kneeling animation ~0.3s after HP depletion
• Displacement window: 0.2-0.5s after glow

Constellation Impact

Priority:

• Sucrose C1 > Xingqiu C2 > Lisa C4 > Collei C4

Collei: C0 functional (200%+ ER), C4 increases EM

Xingqiu: C0 functional (needs Sacrificial), C2 extends duration/reduces Hydro RES, C6 massive spike

Lisa: C0 adequate, C4 increases Lightning Rose arcs

Sucrose: C0 core kit, C1 extra Skill (crucial), C6 grants 20% elemental DMG

Phase Skip Execution: Frame-Perfect Timing

Exploits 0.5s window between HP depletion and Wild Hunt activation.

Visual Indicators

1. HP bar reaches zero, flashes white
2. Model emits blue-white glow
3. Kneeling animation begins
4. Screen briefly darkens

Audio: Low-pitched resonance, music quiets

Timing: HP depletion to Wild Hunt = 1.2s total

• 0.0-0.3s: HP flash/glow
• 0.3-0.8s: Kneeling (OPTIMAL WINDOW)
• 0.8-1.2s: Wild Hunt starts (too late)

Skill Execution Timing

Sucrose Skill: 0.2s cast, 0.3s displacement effect, 0.5s total | Input: 0.2-0.4s after glow

Anemo Traveler: 0.3s cast, 0.2s displacement, 0.5s total | Input: 0.1-0.3s after glow

Jean: 0.1s cast, immediate displacement | Input: 0.3-0.5s after glow (most forgiving)

Successful Skip Results

1. Grief-Stricken cancels
2. Wild Hunt aborts
3. No Exiles spawn
4. Immediate second HP phase
5. Time saved: 25-35 seconds

Troubleshooting Failures

Too Early: Lightkeeper pushed but still summons | Wait for glow confirmation

Too Late: Wild Hunt activates | React faster, pre-position closer

Insufficient Force: Barely moves, summons proceed | Level displacement skill to 6+, stay within 5m

Wrong Skill: Knockback without skip | Use Anemo displacement only

Animation Lock: Couldn't cast | Stop attacking 1s before HP depletion

Backup Strategy

If skip fails:

1. Focus Exiles first
2. Use Ascendant Gleam if available
3. Save high-damage Bursts for second phase
4. Rebuild energy during Exile clearing

Failed skip adds 25-35s. With first-half <90s, 3-star still achievable with perfect second-phase DPS.

Lightkeeper Attack Patterns

Opening (100-70% HP)

Slash Combo: 3-hit melee, 8k-12k per hit | Dodge backward after second hit (1.5s punish window)

Charge Attack: Forward dash, 18k-22k | Telegraph: brief crouch | Dodge sideways, attack from behind (2s window)

Summon Projectiles: 3 homing bolts, 6k-9k each | Sprint perpendicular

DPS Windows: After Slash (1.5s), After Charge (2s), During Projectile summon (1s)

After 50% HP

Enhanced Slash: 4th hit with AoE explosion, 10k-15k slashes, 20k-25k explosion | Dodge backward after third hit

Teleport Strike: Disappears, reappears behind player, 25k-30k | Telegraph: model fades | Dodge on fade detection

Ground Slam: Leaps, crashes down, 35k-40k direct, 15k-20k shockwave (8m radius) | Sprint away, shield if available

Invincibility Triggers

1. Excessive Interruption: 3+ staggers in 10s = 3s invincibility | Space heavy hits
2. Phase Transition: 1.2s invincibility during Wild Hunt (if skip fails)
3. Enrage Timer: >180s fight = periodic invincibility | Maintain aggressive DPS

Optimal DPS Windows

High Priority (3+ seconds): After Ground Slam, After Charge Attack, During Projectile summon

Medium (1.5-2s): After Slash Combo, After Teleport Strike

Low (<1s): Between Slash hits (risky)

Align Bursts with high-priority windows. Example: Xiangling Pyronado after Ground Slam for full 3s recovery.

Common Mistakes

#1: Launch Timing Errors

Error: Panic-cast displacement too early/late

Why It Fails: Early pushes without interrupting, late allows sequence lock-in

Fix: Practice timing. Glow = trigger. Count one-Mississippi after glow, then cast.

#2: Insufficient Energy Recharge

Error: Building supports with ATK%/CRIT instead of ER, causing Burst downtime

Why It Fails: Without Bursts, lose 40-60% damage

Fix: Prioritize ER thresholds:

• Bennett: 200-220%
• Xingqiu: 180-200%
• Sucrose: 160-180%
• Xiangling: 160-180% (with Bennett)

Use ER Sands on supports. Team DPS > individual damage.

#3: Poor Elemental Application

Error: Wrong element order (Pyro before Hydro for Vaporize)

Why It Fails: Reverse Vaporize (Hydro on Pyro) = 1.5x vs forward (Pyro on Hydro) = 2x. Loses 25% reaction damage.

Fix:

• Vaporize: Hydro first (Xingqiu), then Pyro (Xiangling)
• Electro-Charged: Order matters less, maintain both
• Melt: Cryo first, then Pyro for 2x

#4: Ignoring Poise

Error: Continuous attacking without considering poise, displacement fails

Why It Fails: Enemies build poise resistance after staggers

Fix: Stop attacking 2-3s before HP depletion. Allow poise reset. Brief pause (~5k damage loss) prevents 30s time loss.

#5: Suboptimal Positioning

Error: Too far, edge positioning, clustering

Why It Fails:

• 8m = displacement misses

• Edges = wall physics bugs
• Clustering = increased AoE damage

Fix:

• 3-5m from boss
• Arena center during transitions
• Spread slightly
• Displacement character closest during critical windows

Character Investment Priority

Level Priority

Tier 1 (80/90, full investment):

1. Xiangling: Core DPS, scales excellently
2. Xingqiu: Universal enabler
3. Bennett: Best support, ATK buff scales with level

Tier 2 (70/80, moderate): 4. Sucrose: VV/EM don't scale with levels, survivability improves 5. Collei: Dendro application functional at lower levels

Tier 3 (60/70, minimal): 6. Lisa: Electro/DEF shred work at low levels

Talent Requirements

Minimum (3-star):

• Main DPS Bursts (Xiangling, Xingqiu): 6
• Support Bursts (Bennett): 4
• Displacement Skills (Sucrose): 4

Recommended:

• Main DPS Bursts: 8-9
• Main DPS Skills: 6-8
• Support Bursts: 6-8
• Displacement Skills: 6

Crown Priority: Xiangling Burst > Xingqiu Burst > Bennett Burst

Artifact Farming

Week 1-2: VV Domain (Sucrose 4pc VV = 40% RES shred, highest damage increase)

Week 3-4: Emblem Domain (Xiangling/Xingqiu 4pc Emblem, efficient with Shimenawa)

Week 5-6: Noblesse Domain (Bennett 4pc, use Strongbox while farming others)

Main Stats:

• Sands: ER (supports), ATK% (DPS)
• Goblet: Elemental DMG%
• Circlet: CRIT Rate/DMG (DPS), Healing/HP% (Bennett)

Substats: ER (until thresholds) > CRIT Rate/DMG (1:2 ratio) > ATK% > EM > Flat stats

Weapons

Xiangling: The Catch (R5 free) > Favonius Lance > White Tassel

Xingqiu: Sacrificial Sword (essential) > Favonius Sword > Skyrider Sword

Bennett: Prototype Rancour (highest base ATK craftable) > any high base ATK sword

Sucrose: Sacrificial Fragments > Thrilling Tales (3★, 48% ATK buff) > Mappa Mare

Collei: Favonius Warbow > Elegy > Recurve Bow

Lisa: Thrilling Tales > Favonius Codex > Hakushin Ring

Constellation Value

Highest:

• Xingqiu C2: 15% Hydro RES shred, extended duration
• Sucrose C1: Extra Skill charge (crucial)
• Bennett C1: Removes HP restriction (transformative)
• Xiangling C4: 40% Pyronado extension

Avoid: Bennett C6 (converts attacks to Pyro, ruins comps—NEVER ACTIVATE)

Starglitter Priority: Xingqiu C1-C6 > Bennett C1 (stop C5) > Sucrose C1 > Xiangling C4

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Advanced Optimization

Pre-Chamber Energy Funneling

Build Burst energy before Floor 12-1 by defeating Floor 11-3 enemies with Skills/Normal Attacks only. Enter Chamber 1 with 80-100% energy.

Time saved: 8-12s

Animation Canceling

Dash Cancel: Skill → Dash → Swap (0.3-0.5s saved per cancel, 2-3s per rotation)

Jump Cancel: Normal chain → Jump before final hit (0.2-0.4s per chain)

Swap Cancel: Burst → Swap immediately (0.5-0.8s per Burst)

Element Application Order

Vaporize: Hydro (Xingqiu) → Pyro (Xiangling) = 2x multiplier

Electro-Charged: Hydro + Electro coexist, refresh every 8-10s

Bloom: Dendro (Collei) → Hydro (Xingqiu) → Electro (Lisa) for Hyperbloom

Failed Skip Recovery

0-5s: Switch to highest DPS, target Exiles, use Bursts to kill within 8s

5-15s: If Exiles enter Grief-Stricken, focus one at a time, use Ascendant Gleam, rebuild energy

15+s: Unleash all Bursts when second phase begins, pure DPS race, use food buffs, accept 2-star if needed

Chamber Adaptations

Chamber 2 (multiple enemies): Increase Sucrose grouping, use Guoba for CC, position for multi-target Bursts

Chamber 3 (high-HP single): Replace Sucrose with higher DPS Anemo (Kazuha), focus damage over displacement

First Half: Works vs Perpetual Array—group Sentinels, focus enhanced (yellow), maintain energy

Alternative Characters

5-Star Comparisons

Kazuha: Higher damage, easier grouping, elemental DMG% buff | Phase skip: 85% success | Best for CC + damage

Venti: Strongest CC, energy refund, trivializes small enemies | Phase skip: 70% success | Less optimal for single-target

Xianyun: Plunging buffs, strong healing, vertical displacement | Phase skip: 90% success (most reliable) | Best for Lightkeeper specifically

Recommendation: Xianyun most reliable skip. Sucrose superior F2P (accessibility + EM sharing).

4-Star Options

Fischl: Replace Lisa for higher damage. Oz provides better targeting.

Beidou: Replace Lisa vs multiple enemies. Stormbreaker bounces. Needs 140-160% ER.

Yanfei: Replace Xiangling if needed elsewhere. Charged Attacks benefit from Ley Line. Lower DPS.

Thoma: Replace Bennett if needed first half. Shielding + Pyro Resonance. 30-40% longer clears.

Hybrid Teams

Arlecchino-Fischl-Chevreue-Bennett: Hypercarry DPS + Bennett knockback displacement. 60% skip success, high DPS compensates.

Mavuika-Citlali-Bennett-Xilonen: Premium 5★. Xilonen displacement + RES shred. 75% skip success, highest DPS.

Synergy Matrix

Best:

• Sucrose + Xiangling: EM sharing amplifies Vaporize
• Xingqiu + Bennett: Damage reduction + healing
• Collei + Lisa: Quicken aura increases Electro damage
• Anemo Traveler + Fischl: Palm Vortex groups for Oz

Poor:

• Sucrose + Physical DPS: EM wasted
• Bennett + Freeze: Pyro breaks Freeze
• Displacement + Immobile bosses: Wasted slot

Resource Management

Primogem Efficiency

Monthly Sources:

• Daily Commissions: 1,800
• Spiral Abyss 36★: 600
• Events: 800-1,200
• Maintenance: 300
• Total: 3,500-4,000

Pull Strategy:

• Save 14,400 (90 pulls) for guaranteed 5★
• Prioritize versatile supports (Kazuha, Zhongli) over niche DPS
• Pull 4★ constellations from Paimon's Bargains
• Avoid weapon banner (poor F2P value)

Lightkeeper Priority: Sucrose (4★) > Xingqiu (4★) > Bennett (4★) > Xiangling (free Floor 3)

All core characters are 4★—highly accessible.

Resin Allocation

Daily: 180 (240 with Fragile)

Weekly Schedule:

• Mon/Thu: Talent books (main DPS)
• Tue/Fri: Talent books (supports)
• Wed/Sat: Weapon materials
• Sun: Boss materials/catch-up
• Daily (60): Artifact domains (VV, Emblem, Noblesse)

Priority:

1. Character Ascension 80/90 (main DPS)
2. Weapon Ascension 90 (all)
3. Talents 6-8 (main DPS Bursts/Skills)
4. Artifacts (main stats > sets > substats)
5. Talents 8-10 (diminishing returns)

Fragile Resin: Save for AR 45+ artifacts, limited events, emergency upgrades. Avoid EXP/Mora farming, pre-AR45 artifacts.

Pull Value Analysis

Sucrose (4★): Very High (frequent banners) | Pull to C1 minimum | ROI: Excellent (80% comps)

Jean (5★ Standard): Low (no rate-up) | Don't chase | ROI: Good if obtained

Kazuha (5★ Limited): High (best Anemo) | Save 14,400 for guarantee | ROI: Excellent (30-40% team DPS increase)

Venti (5★ Limited): Medium (niche) | Skip unless favorite | ROI: Moderate

Xianyun (5★ Limited): Medium-High (plunge teams, healer) | Consider for plunge comps | ROI: Good

F2P Rec: Focus Sucrose constellations. Skip limited 5★ Anemo unless excess Primogems after securing Bennett, Xingqiu, main DPS.

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FAQ

What triggers Battle-Hardened Lightkeeper's invincibility?

At zero HP, enters Grief-Stricken state, activates Wild Hunt to summon Wilderness Exiles. Exiles restore boss HP via life absorption, creating 25-35s invincibility. Displacement during 0.3-0.8s transition window interrupts summoning, eliminating HP restoration.

Which F2P characters launch enemies?

Anemo Traveler (Palm Vortex, 5s cooldown) and Sucrose (Astable Anemohypostasis Creation) provide reliable displacement. Traveler free from start, Sucrose frequent on banners/standard wishes.

How does launch work in Spiral Abyss?

Launch applies force exceeding enemy poise, interrupting actions and repositioning. For Floor 12-1-2, launching Lightkeeper during phase transition (0.3-0.8s after HP depletion) cancels Grief-Stricken, preventing Wild Hunt. Precise timing required—too early/late fails.

Can you skip Lightkeeper's shield phase?

No traditional shield, but Grief-Stricken revival functions similarly. Skip entirely via displacement (Sucrose Skill, Anemo Traveler Palm Vortex, Jean Gale Blade) during brief transition. Saves 25-35s, often determines 3★ clear within 420s requirement.

Launch vs displacement difference?

Launch: Vertical force (Jean Gale Blade, Anemo Traveler Palm Vortex). Displacement: Horizontal/controlled (Sucrose pull, Venti vortex). Knockback: Brief backward force (Overloaded, Claymore). Both launch/displacement work for phase skip; launch more reliable (stronger poise-breaking).

Best Lightkeeper counters?

Xiangling-Xingqiu-Bennett-Sucrose most accessible, leveraging Vaporize + 75% Lunar Reaction DMG. Sucrose handles displacement + VV shred. Alternatives: Arlecchino-Fischl-Chevreue-Bennett or Mavuika-Citlali-Bennett-Xilonen (higher DPS, needs limited 5★). Core: one Anemo with displacement + strong elemental reaction dealers.