How to Clear Genshin Impact Spiral Abyss 12 With 4-Star Characters

Clearing Floor 12 of the Genshin Impact Spiral Abyss with only 4-star characters and weapons is the ultimate test of game knowledge. While 5-star units offer higher base stats and easier scaling, the combat mechanics of Genshin Impact reward player strategy, reaction timing, and team synergy over raw power. Achieving a 9-star clear without premium roster staples is entirely possible if you understand how to manipulate enemy AI, optimize your energy economy, and maximize elemental reaction multipliers.

The Strategy for F2P Success: Reaction Density

When running 4-star teams, your damage output cannot rely on brute force. Instead, you must focus on "Reaction Density"—the ability to trigger multiple high-multiplier elemental reactions within a single damage window.

• Hyperbloom/Burgeon Foundations: Characters like Kuki Shinobu or Thoma provide consistent off-field elemental application that scales with Elemental Mastery. These reactions bypass high enemy defense stats, making them invaluable for Floor 12’s tanky bosses.
• National Core Stability: The classic Xiangling, Bennett, and Xingqiu trio remains the gold standard. Their ability to trigger Vaporize and Melt consistently allows them to output DPS comparable to C0 5-star teams.
• The Utility Priority: In a 4-star run, survivability often hinges on "pseudo-healers" or shielders. If you are struggling to survive, swap a sub-DPS for a character like Yaoyao or Layla. Their defensive utility ensures your main DPS can complete their full attack string without being interrupted or knocked back.

Mastering Energy Management and Rotations

The most common reason for failing a 9-star clear is not a lack of damage, but a lack of uptime. If your Elemental Bursts are not ready at the start of each rotation, your DPS drops to near zero.

1. Energy Recharge (ER) Thresholds: Never sacrifice ER for Crit stats on your supports. A 4-star character with 200% ER using their Burst every rotation is infinitely more valuable than one with 150% ER who misses their window.
2. Battery Mechanics: Use characters of the same element to generate particles for your main carry. For example, Bennett’s skill is an excellent battery for Xiangling.
3. Rotation Sequencing: Always lead with your longest-duration off-field skill, followed by your buffs (Bennett/Sara/Gorou), and end with your main on-field DPS. This ensures your damage window aligns perfectly with your highest buffs.

Strategic Enemy Manipulation and AI Baiting

Floor 12 enemies are designed to be mobile, often wasting your time by dashing away or spreading out. You must use spatial awareness to force them into a manageable kill zone.

• Corner Baiting: If an enemy has a dash ability, run to the far edge of the arena. The AI will prioritize closing the distance, effectively grouping themselves for your AoE (Area of Effect) attacks.
• Interrupting Animations: Many elite enemies have "telegraphed" attacks where they stand still for several seconds. Save your high-damage Bursts for these windows.
• I-Frame Utilization: Use your Elemental Burst animations to "I-frame" (invincibility frame) through high-damage enemy attacks. This allows you to stay aggressive and continue your DPS rotation while the enemy is attacking, rather than dodging and losing valuable seconds.

Constellation Value and Artifact Optimization

4-star characters are often balanced around their Constellations. A C0 4-star is frequently underpowered, whereas a C6 unit can rival C0 5-stars.

• Focus on Key Constellations: Prioritize resources for units like Xiangling (C4+), Bennett (C1), Xingqiu (C6), and Kuki Shinobu (C2+). These constellations provide fundamental mechanical shifts that increase damage or energy generation.
• The "Broken Set" Rule: Do not obsess over 4-piece artifact sets if the substats are poor. A 2-piece/2-piece combination (e.g., +15% Elemental DMG and +80 Elemental Mastery) with perfect Crit Rate/DMG and ER substats will almost always outperform a mediocre 4-piece set.
• Weapon Synergy: Choose 4-star weapons that solve your team's specific weaknesses. If your team is struggling to keep Bursts up, equip Favonius series weapons. Even if they have lower base damage, the team-wide energy particles provided by the Favonius passive will significantly reduce your clear time.

Adapting to Ley Line Disorders

Each Spiral Abyss rotation features a specific Ley Line Disorder that acts as an elemental or mechanic buff. Ignoring this is a mistake.

• Read the Buffs: If the current floor encourages "Bloom" reactions, build a team centered around Dendro and Hydro, even if those aren't your "main" units. The floor buff acts as a massive multiplier that can bridge the gap between 4-star gear and the massive HP pools of Floor 12 enemies.
• Shield Breaking Priority: Many Floor 12 waves contain shielded enemies (e.g., Abyss Heralds or Lectors). Your team must have a dedicated "shield breaker." If you are running out of time, replace one DPS unit with a character that applies the countering element rapidly. Breaking the shield quickly is often the only way to expose the enemy to true damage.

Troubleshooting Your 9-Star Run

If you reach the end of the timer and are missing stars, perform a "damage check" on your run:

1. Is your team dying? You need more defensive utility. Add a shielder or healer.
2. Is your energy fluctuating? You need more ER on your supports.
3. Are you missing damage? You are likely failing to group enemies or your rotations are out of sync. Record your gameplay and watch it back to identify where you are wasting time chasing enemies or missing your reaction windows.

By focusing on the synergy of your 4-star roster and strictly adhering to energy requirements and positioning tactics, you can master the most difficult content in Genshin Impact. Remember that consistency is key; patience in rotating your skills correctly will always result in a faster clear than frantic button-mashing.