Anaxa stands as a transformative figure within the Erudition Path in Honkai: Star Rail, shifting the paradigm of how elemental weaknesses dictate combat flow. As a Wind-type damage dealer, Anaxa possesses the unique ability to bypass traditional elemental resistances by forcibly implanting weaknesses onto enemy targets. This mechanic not only benefits Anaxa's personal damage output but also elevates the efficiency of the entire team, making this character a versatile asset in high-level endgame content like Pure Fiction and Memory of Chaos.

Core Mechanics and Skill Synergy

Understanding the optimal Anaxa build requires a deep dive into the "Sublimation" and "Qualitative Disclosure" states. Unlike traditional DPS characters who rely solely on raw multipliers, Anaxa’s ceiling is determined by the number of different weakness types present on the enemy.

Talent: Tetrad Wisdom Reigns Thrice

Anaxa’s talent is the engine of the kit. Every hit landed by Anaxa inflicts one random weakness type on the target for three turns. This effect prioritizes weaknesses the target does not already have. Once an enemy has five or more different types of weaknesses, they enter the "Qualitative Disclosure" state. In this state, Anaxa deals significantly increased damage and triggers an additional follow-up skill attack after using a Basic ATK or Skill. This extra attack consumes no Skill Points (SP), providing exceptional SP economy in prolonged battles.

Ultimate: Sprouting Life Sculpts Earth

The Ultimate is a massive AoE strike that inflicts the "Sublimation" state on all enemies. In this state, targets are simultaneously treated as having all seven weakness types: Physical, Fire, Ice, Lightning, Wind, Quantum, and Imaginary. This effectively guarantees that any ally can trigger a Weakness Break, while also immediately fulfilling the requirements for Anaxa's DEF-ignore traces. Furthermore, if targets lack control resistance, they are immobilized, providing a crucial defensive layer by interrupting enemy action cycles.

Best Light Cones for Anaxa

The choice of Light Cone for Anaxa heavily influences the Energy Regeneration rotation and the effectiveness of the DEF-shred mechanics.

1. Life Should Be Cast to Flames (Signature 5-Star)

This is the definitive Best-in-Slot (BiS) option. It provides a substantial ATK boost and grants Anaxa energy at the start of the turn. Most importantly, it reduces the DEF of attacked enemies by 24%. When combined with Anaxa's inherent traces that ignore DEF based on the number of weakness types, this Light Cone allows Anaxa to reach near-total DEF penetration, which is mathematically the strongest damage scaling factor in the current meta.

2. Into the Unreachable Veil (Alternative 5-Star)

For players focusing on a high-speed, SP-positive build, this Light Cone offers Crit Rate and increases both Skill and Ultimate damage. It also features a unique SP recovery mechanic, making it ideal for teams where the supports (like Robin or Sunday) are SP-intensive.

3. The Great Cosmic Enterprise (Best 4-Star/F2P)

This Light Cone scales perfectly with Anaxa’s kit. It increases ATK and provides a damage bonus based on the number of weakness types the enemy possesses. Since Anaxa can easily maintain 7 weaknesses on all targets via the Ultimate, the passive on this Light Cone is almost always at maximum stacks, making it competitive with some unrefined 5-star options.

Relic Selection and Stat Priority

Anaxa's relic requirements are unique due to the weakness implantation mechanic. While Wind damage is the base, the ability to apply Quantum weakness makes certain sets more valuable than they appear on other Wind characters.

4-Piece Relic Sets

  • Genius of Brilliant Stars: Although designed for Quantum characters, this is arguably Anaxa's best set. Because Anaxa's Ultimate implants Quantum weakness to all enemies, the 20% DEF ignore provided by the 4-piece set is permanently active. When stacked with the signature Light Cone and Anaxa's "Qualitative Shift" trace (4% DEF ignore per weakness type), Anaxa can shred the majority of an enemy's armor.
  • Scholar Lost in Erudition: This is the standard choice for boosting Crit Rate and follow-up damage. It is more consistent if you are not running the signature Light Cone or do not have high uptime on the Ultimate.
  • Eagle of Twilight Line: A strategic choice for Pure Fiction. The 25% Action Advance after using an Ultimate allows Anaxa to take more turns within the limited cycle count, maximizing the frequency of the "Qualitative Disclosure" follow-up attacks.

Planar Ornaments

  • Rutilant Arena: Still a top-tier choice for consistent damage. It requires an 80% Crit Rate, which is achievable through Anaxa’s traces and a Crit Rate body piece. It boosts Basic ATK and Skill DMG significantly.
  • Izumo Gensei and Takama Divine Realm: Best used in dual-Erudition teams (e.g., with The Herta). It provides a 12% ATK boost and 12% Crit Rate, making it easier to hit stat breakpoints.
  • Lushaka, the Sunken Seas: A support-oriented option if Anaxa is being used as a sub-DPS to enable another carry. It increases Energy Regeneration and buffs the ATK of the first character in the team lineup.

Recommended Main Stats

  • Body: Crit Rate or Crit DMG (Aim for a 1:2 ratio, minimum 80% Crit Rate).
  • Feet: Speed (134 or 143 breakpoints are ideal to maximize turn frequency).
  • Sphere: Wind DMG Boost or ATK% (Wind DMG is generally superior due to the abundance of ATK buffs from supports).
  • Rope: ATK% or Energy Regeneration Rate. If using the signature Light Cone, an ATK% rope is preferred for higher damage ceilings.

Trace Priority and Bonus Abilities

Leveling Anaxa's traces should follow a logic that prioritizes the most frequent damage sources and the scaling of the weakness mechanics.

  1. Skill (Highest Priority): This is the primary damage dealer and the main way to stack weaknesses outside of the Ultimate.
  2. Talent: Critical for scaling the damage bonus in the "Qualitative Disclosure" state.
  3. Ultimate: Essential for the 7-weakness implantation and action interruption.
  4. Basic ATK: Lowest priority, though still used to trigger the free skill proc.

Key Bonus Abilities

  • Imperative Hiatus (A4): This trace changes Anaxa’s role based on team composition. With one Erudition character, Anaxa gains 140% Crit DMG. With two or more, the entire team gains a 50% DMG boost. This flexibility allows Anaxa to pivot between a Hypercarry and a Dual-DPS enabler.
  • Qualitative Shift (A6): For every weakness type an enemy has, Anaxa ignores 4% of their DEF (up to 28%). This is the cornerstone of Anaxa’s scaling and makes the character highly effective against boss-level enemies with high innate DEF.

Top Team Compositions

Anaxa’s versatility allows for several high-performance team archetypes. The current meta favors teams that take advantage of the "Imperative Hiatus" trace.

1. The "Erudition Duo" (Anaxa + The Herta)

This is currently the premier team for Pure Fiction.

  • Anaxa: Sub-DPS / Weakness Enabler.
  • The Herta: Primary DPS.
  • Tribbie: Buffer (provides All-Type RES PEN and buffs that hit both DPS units).
  • Lingsha / Aventurine: Sustain (preferably units with follow-up attacks to help break toughness). This team triggers the 50% team-wide damage boost from Anaxa's A4 trace. Anaxa applies weaknesses, allowing The Herta to deal massive damage regardless of the enemy's natural Ice resistance.

2. Anaxa Hypercarry

This setup focuses entirely on maximizing Anaxa’s personal output.

  • Anaxa: Main DPS.
  • Sunday: Buffer (Action Advance and Skill DMG buffs).
  • Cerydra: Support (provides Skill-related energy and damage multipliers).
  • Huo Huo: Sustain (Energy regeneration and ATK buff). In this team, Anaxa benefits from the 140% Crit DMG boost from the A4 trace (since Anaxa is the only Erudition character). This setup is ideal for Memory of Chaos where single-target and elite-target damage is more critical.

3. F2P Remembrance Team

An accessible build for players without limited 5-star supports.

  • Anaxa: Main DPS.
  • Remembrance Trailblazer (Ice): Provides True DMG buffs and Turn Advance via Mem.
  • Asta: Provides Speed and ATK buffs; her Skill is excellent for breaking enemies once Anaxa implants Fire weakness.
  • Lynx / Natasha: Sustain.

Eidolon Analysis: When to Stop?

For those looking to invest further, Anaxa’s eidolons provide significant power spikes.

  • E1 (Magician, Isolated by Stars): Provides SP recovery and a 16% DEF shred on the Skill. This makes Anaxa much more comfortable to play in SP-heavy teams.
  • E2 (Soul, True to History): A major breakthrough. It automatically triggers weakness implantation when enemies enter the field and reduces their All-Type RES by 20%. This effectively removes the need to "build up" to the Qualitative Disclosure state.
  • E6 (Everything is in Everything): The ultimate ceiling. It provides a flat 130% damage multiplier and activates both effects of the "Imperative Hiatus" trace simultaneously, regardless of how many Erudition characters are on the team. At E6, Anaxa becomes the strongest universal DPS in the game.

Practical Combat Strategy

When playing Anaxa, the goal is to reach the "Qualitative Disclosure" state as quickly as possible. In multi-target scenarios, use the Skill to bounce weaknesses across the field. If a high-threat elite enemy is present, use the Ultimate immediately to force all 7 weaknesses and trigger the immobilize effect.

Manage your Skill Points by observing the weakness count. Once an enemy has 5+ weaknesses, remember that your next Basic ATK will trigger a free Skill. In some situations, using a Basic ATK to save an SP while still getting the Skill's damage and weakness application is the optimal play.

Anaxa’s ability to ignore elemental rules makes the character a future-proof investment. By focusing on DEF penetration via the Genius of Brilliant Stars set and the signature Light Cone, you can ensure Anaxa performs consistently against any enemy lineup Honkai: Star Rail introduces in future patches.