To achieve a 9-star clear on Genshin Impact Spiral Abyss Floor 12 using only 4-star characters and weapons, build enough Energy Recharge to cast Elemental Bursts off-cooldown and group enemy waves by positioning near arena edges. Because 4-star characters lack the stat scaling of 5-star options, your success relies entirely on rotational execution, passive uptime, and survivability.
Energy Management and Elemental Rotations
Maintaining tight rotation windows ensures your team meets the damage-per-second (DPS) thresholds required for 3-star chamber clears.
- Prioritize Energy Recharge (ER): Gear support units to meet their specific ER requirements so their bursts are ready as soon as cooldowns end. A delay in burst availability breaks your rotation and lowers total team output.
- Execute Skill Sequences in Order: Apply all attack buffs and resistance debuffs (such as Viridescent Venerer shred) immediately before switching to your main on-field character.
- Cancel Ability Animations: Use dash or jump cancels to skip recovery frames on character skills, reducing downtime between switches.
Enemy Positioning and Aggro Control
Floor 12 enemies often spawn across large areas or move aggressively. Controlling their positioning maximizes your area-of-effect (AoE) skill efficiency.
- Avoid the Center: When a new wave spawns, head toward the perimeter or back walls of the arena rather than charging into the middle.
- Force AI Clustering: Moving to the outer edges causes mobile enemies to path directly toward you, grouping them naturally without requiring dedicated grouping abilities.
- Unload AoE Bursts: Once the enemies line up, trigger your burst sequence to damage all targets simultaneously.
Optimizing 4-Star Weapons and Utility
Relying on 4-star equipment requires maximizing weapon passives and team utility to offset lower base stats.
| Priority Focus | Action Required | Practical Effect |
|---|---|---|
| Refinement Ranks | Upgrade craftable weapons to Refinement Rank 5 (R5). | Increases passive stat bonuses to narrow the DPS gap with 5-star gear. |
| Passive Triggers | Match character actions to weapon conditions (e.g., land Normal Attacks if required). | Ensures key weapon damage and energy buffs remain active during combat. |
| Defensive Sustain | Include a dedicated shielder or healer on the team. | Prevents attack interruptions and knockbacks, keeping DPS output consistent. |
Adjusting Strategy for Specific Chambers
Treat each chamber on Floor 12 as an individual combat puzzle:
- Elemental Resistance: Identify enemy elemental affinities and bring units that counter those elements or shred specific resistances.
- Elemental Reactions: Trigger high-multiplier reactions like Vaporize or Melt to compensate for lower base skill scaling.
- Artifact Substats: Adjust artifact choices to emphasize Energy Recharge and Elemental Mastery, which provide reliable scaling for 4-star support units.
Free Genshin Impact Codes
Current active codes and how to redeem them.
Emily Johnson
Emily writes practical mobile strategy guides with a focus on resource planning, base progression, and the early decisions that shape a long-term account.
COMMUNITY
Player Comments
59 players commented on this guide.
This helped me understand strategy much better.
Nice guide. I am checking the other Genshin Impact articles next.
I tried this today and it worked better than my old setup.
Good guide for Genshin Impact players. The strategy part was useful.