Anaxa has redefined the Erudition path in Honkai: Star Rail, transitioning from a niche weakness-breaker to a universal powerhouse capable of dismantling any endgame content. As a 5-star Wind character following the Path of Erudition, Anaxa’s kit revolves around a unique mechanic: the ability to implant multiple weakness types onto enemies, effectively making the concept of "elemental resistance" obsolete. This guide provides a comprehensive breakdown of the best Anaxa build to maximize your damage output in the current meta.

Anaxa Core Mechanics and Ability Overview

Understanding Anaxa’s kit is essential before diving into gear. Unlike traditional DPS units that rely on the enemy having a pre-existing elemental weakness, Anaxa creates her own opportunities.

Talent: Tetrad Wisdom Reigns Thrice

This is the heart of Anaxa's gameplay. Every time Anaxa hits an enemy, she inflicts a random weakness type that the target does not already possess. This lasts for three turns. 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, SP-free skill use after her basic attack or skill. This allows for massive energy regeneration and chain reactions.

Ultimate: Sprouting Life Sculpts Earth

Her Ultimate is a massive AOE Wind attack that inflicts the "Sublimation" state on all enemies. This state simultaneously applies all seven elemental weaknesses (Physical, Fire, Ice, Lightning, Wind, Quantum, and Imaginary) to the targets. While in this state, enemies are essentially vulnerable to everything, and if they lack control resistance, they are completely immobilized. This makes Anaxa one of the strongest crowd-control units in the game while maintaining high DPS.

Trace Priority

To optimize resource allocation, focus on upgrading her abilities in this order:

  1. Skill (Fractal, Exile's Fallacy): This is her primary source of damage and weakness application through its bounce hits.
  2. Talent (Tetrad Wisdom Reigns Thrice): Crucial for the "Qualitative Disclosure" damage buff and free skill procs.
  3. Ultimate (Sprouting Life Sculpts Earth): Important for the AOE burst and the Sublimation debuff utility.
  4. Basic ATK (Pain, Brews Truth): Lowest priority, though her "Roaming Signifier" trace makes it useful for energy recovery.

Best Light Cones for Anaxa

Anaxa’s performance scales heavily with her Light Cone choice, particularly those that offer DEF ignore or damage boosts based on the number of weaknesses present.

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

This is undeniably her Best-in-Slot (BiS). It provides a massive flat DMG boost against targets with weaknesses implanted by the wearer—a condition Anaxa fulfills constantly. Additionally, it regenerates 10 energy at the start of every turn and shreds 12-24% of the enemy's DEF when they are attacked. This synergy allows Anaxa to maintain a consistent 2-turn Ultimate rotation without needing an Energy Regeneration Rope in most scenarios.

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

If you missed her signature, this is the next best thing. It increases Crit Rate and provides a substantial DMG boost to both her Skill and Ultimate after using her Ultimate. The skill point recovery mechanic is also beneficial for maintaining team-wide SP economy in aggressive hypercarry setups.

3. F2P and Budget Options

  • The Great Cosmic Enterprise (4-Star): This Light Cone was practically designed for Anaxa. It increases ATK and provides a stacking DMG boost for every different weakness type the enemy has. Since Anaxa can easily stack all 7 weaknesses, she hits the maximum cap of this Light Cone effortlessly.
  • Today is Another Peaceful Day (4-Star): For players with the Battle Pass, the high energy cost of Anaxa’s Ultimate makes this a very stable damage increase.
  • The Day the Cosmos Fell (4-Star): A solid free option from the Forgotten Hall shop. It rewards Anaxa for attacking enemies with corresponding weaknesses, which she provides for herself.

Best Relic Sets for Anaxa

Choosing the right Relic set for Anaxa involves a unique decision: do you build for her Wind element, or exploit her weakness implantation for high-tier universal sets?

Top Tier: Genius of Brilliant Stars (4-Piece)

Surprisingly, the Quantum set is often Anaxa’s highest damage ceiling set. Because her Ultimate and Talent can implant Quantum weakness onto any enemy, she can permanently trigger the 20% DEF ignore provided by this set. When paired with her signature Light Cone or a teammate like Pela, the cumulative DEF shred results in exponential damage growth.

High Consistency: Scholar Lost in Erudition (4-Piece)

This set is excellent for a more straightforward build. It grants Crit Rate and increases the damage of her Skill and Ultimate. Since Anaxa relies on her Skill's bounce hits and her AOE Ultimate for the bulk of her damage, the 20% flat increase is very reliable.

Speed and Utility: Eagle of Twilight Line (4-Piece)

For high-level endgame content like Pure Fiction, the Wind set is exceptional. The 25% action advance after using her Ultimate allows Anaxa to cycle through her turns much faster. This is particularly potent when paired with supports like Robin or Sunday, who can further manipulate the turn order.

Planar Ornaments

  • Rutilant Arena: Still the gold standard for hypercarry Anaxa. Reaching the 70% Crit Rate threshold is mandatory to buff her Skill damage.
  • Izumo Gensei and Takama Divine Realm: If you are running Anaxa in a dual-DPS team (specifically with The Herta), this set is superior. It provides 12% ATK and 12% Crit Rate, making it easier to hit your stat goals.
  • Lushaka, the Sunken Seas: A viable option if you are playing Anaxa in a more supportive, weakness-implanting sub-DPS role, as it buffs the ATK of the primary damage dealer.

Stat Targets and Breakpoints

Building Anaxa requires balancing her high energy needs with aggressive offensive stats. Here are the recommended targets for a "Level 80" endgame build:

  • Crit Rate: 80%+. Consistency is key for her multi-hit Skill.
  • Crit DMG: 160%+. Between her traces and signature LC, reaching this is manageable.
  • Speed (SPD): 134 or 135. You want her to act twice in the first cycle. If you are using a -1 SPD Sunday setup, ensure Anaxa is exactly 1 SPD faster than Sunday.
  • Attack (ATK): 2,800 - 3,200. While she has high base ATK, don't neglect this in favor of too much Crit DMG.
  • Energy Regeneration Rate (ERR): Only necessary if you don't have her signature Light Cone or lack a high-uptime energy battery like HuoHuo or Sunday.

Main Stat Priority:

  • Body: Crit Rate or Crit DMG (whichever helps you hit the 1:2 ratio).
  • Feet: SPD.
  • Sphere: Wind DMG or ATK% (Wind DMG is generally better due to her numerous ATK buffs).
  • Rope: ATK% or ERR (ATK% is preferred if using her signature LC).

Team Compositions for Anaxa

Anaxa’s versatility allows her to fit into multiple team archetypes, ranging from traditional hypercarry to modern dual-Erudition setups.

1. The "Omni-Breaker" Hypercarry

  • Main DPS: Anaxa
  • Support 1: Sunday
  • Support 2: Robin or Tribbie
  • Sustain: Aventurine or HuoHuo

In this team, Sunday provides the necessary energy and turn-advancement to keep Anaxa in her "Qualitative Disclosure" state indefinitely. Robin or Tribbie provides party-wide DMG boosts and additional coordination attacks. This team excels in Memory of Chaos (MoC) where single-target and elite boss focus is required.

2. Dual Erudition (Pure Fiction Specialist)

  • Primary DPS: Anaxa
  • Secondary DPS: The Herta
  • Support: Tribbie or Ruan Mei
  • Sustain: Lingsha or Fu Xuan

This is currently the highest-performing team for Pure Fiction. Anaxa’s ability to apply weaknesses allows The Herta to trigger her follow-up attacks more reliably against enemies that wouldn't normally be broken. Tribbie’s RES PEN buffs both units, creating a relentless wave of AOE damage.

3. F2P Remembrance Synergy

  • Main DPS: Anaxa
  • Support: Remembrance Trailblazer (Ice)
  • Support: Asta
  • Sustain: Lynx or Gallagher

The Remembrance Trailblazer provides True DMG buffs that scale with the number of weaknesses on the enemy—which Anaxa provides in spades. Asta provides the SPD and ATK necessary for Anaxa to reach her breakpoints without high-end relics.

Gameplay Tips for Maximizing Anaxa

  1. Ultimate Timing: Do not always use Anaxa’s Ultimate as soon as it is charged. In waves of smaller enemies, wait for the next wave to spawn so you can immediately apply the "Sublimation" state to the new targets, ensuring they are immobilized and weakened from the start.
  2. Focus on the Elite: When using her Skill, target the enemy with the highest health. The "Bounce" hits will naturally clear out smaller adds, but focusing on the elite ensures you are stacking weaknesses on the target that requires the most DEF reduction.
  3. The "5-Weakness" Threshold: Monitor the enemy debuff bar. Once an enemy hits 5 weaknesses, Anaxa becomes SP-neutral or even SP-positive due to her free skill procs. Plan your other supports' skill usage around these windows.
  4. Technique Usage: Always use Anaxa’s technique before entering battle. The "Terrified" state makes enemies flee, but more importantly, it ensures you enter battle with an immediate weakness application based on your team's elements, giving you a head start on the Qualitative Disclosure stack.

Summary of Investment

Is Anaxa worth the investment? As of April 2026, she remains one of the most future-proof characters in Honkai: Star Rail. Her mechanic of weakness implantation bypasses the game's fundamental restriction of elemental matching, making her a "one-size-fits-all" solution for various game modes. While she performs exceptionally well at E0, her E2 (which provides permanent RES PEN) and her signature Light Cone are significant upgrades for those looking to maximize her potential.

When building her, prioritize SPD and Crit consistency. With the right setup, Anaxa doesn't just play the game; she rewrites the rules of combat in your favor. Whether you are tackling the latest stage of Apocalyptic Shadow or pushing for a high score in Pure Fiction, a well-built Anaxa is your ticket to a smooth experience.