Guinaifen, also known as Guinevere or Gwen, is the newest 4-star addition to Honkai: Star Rail, introduced in the Topaz and Numby banner. She may seem overshadowed by the glamorous 5-star characters in version 1.4, but in truth, Guinaifen is far from weak. Let's explore how to effectively build Guinaifen to unleash her full potential.
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Guinaifen's Abilities
At first glance at Guinaifen's skill set, Honkai: Star Rail players often think of building her to accompany Kafka. Indeed, Guinaifen has the ability to inflict various Fire Damage Over Time (DOT) effects that Kafka needs to unleash her life-stealing capabilities.
However, Guinaifen's usefulness doesn't just stop at being Kafka's 'accessory'. She is a 4-star character carrying one of Honkai: Star Rail's rarest debuff effects - increasing the damage enemies have to endure. This effect comes from the 'Fire Consumption' debuff in her talent, causing enemies to receive up to 21% additional damage and can last up to 3 turns - almost permanently. This is a significant figure as even 'Mr. Welt,' a 5-star character, only possesses 12%.

When activating the 'Cliff-Climbing Trace,' Guinaifen gains the ability to inflict Burning DOT with normal attacks, turning her from an SP-consuming character into a point generator for the team. The fewer the enemies, the stronger Guinaifen's role as a point generator becomes, and she is very likely to meet the point-generating needs of Dan Heng Amber.
You don't even need high souls for Guinaifen to perform well. Even at soul level 0, Guinaifen can fulfill her role effectively, but higher soul levels will help her unleash her effects more easily - especially soul level 1, which reduces the accuracy requirement. Therefore, her value lies not only in being a DOT provider in Kafka's lineups, but you can also use Guinaifen in regular hypercarry teams.
Guinaifen's Weaknesses
Despite being highly regarded for her debuff capabilities, Guinaifen herself also has considerable damage-dealing potential, as mentioned by Mytour above. However, to unleash both of these advantages, players will have to invest a significant amount of resources. Not everyone is swimming in credits and exploration energy at the moment, especially with new characters constantly being introduced.

Guinaifen's resource consumption is indeed very high compared to other pure support characters. She requires high accuracy to debuff enemies and also needs basic stats like attack, critical rate to unleash skill damage. Her ultimate, skills, and talents need high levels to deal damage, and her normal attacks also need to be upgraded as you'll spam them frequently to maintain the Burning debuff.
Furthermore, if you prioritize critical rate, attack, accuracy, Guinaifen can become quite fragile and hard to survive in boss battles. Without top-tier team protectors like Gepard, Luocha, Fu Xuan (and potentially Huohuo in the future), players may sometimes have to sacrifice Guinaifen's damage output to invest in survival stats to avoid 'sudden death' situations, especially in the final stages of Memorial Arena.
Artifact Builds for Guinaifen
The first thing to remember is that Guinaifen needs 67% accuracy to achieve a 100% debuff success rate, but this is not absolute. You can stop at 43% and invest more in damage or survival stats and still have a very high success rate.
Here are the artifact options for Guinaifen:
- 2x Fireforge Duskstone + 2x Ricestraw Sharps: The best option for Guinaifen currently with its ability to increase DOT damage and not requiring extensive farming.
- 4x Ricestraw Sharps: The most economical choice for Guinaifen as players usually have a large amount of these artifacts. The speed stats it provides are highly suitable for a support-oriented character like Guinaifen.
- 2x Fireforge Duskstone + 2x Spatial Seraph's Herald: Similar effect to the 2x Ricestraw Sharps option, but somewhat harder to farm. Should only be used if you have good Spatial Seraph pieces available.
- Interstellar Conglomerate: Provides the 10% accuracy Guinaifen needs while also boosting attack stats.
- Galactic Seal Station: 24% attack is always beneficial for Guinaifen, and farming it is efficient when paired with the Ageless Xianzhou set.
- Ageless Xianzhou: Sacrifices some damage compared to the previous two options but provides survivability for Guinaifen.

The main stats you should prioritize for Guinaifen are attack or accuracy, speed boots, Fire damage goblet, attack or energy recharge circlet. Secondary stats should prioritize accuracy (up to 43% or 67%), followed by attack, speed, critical damage, HP, and defense.
Explore more: What is accuracy in Genshin Impact, and how much do you need?Light Helmet Builds for Guinaifen
We have several options for light helmets for her, depending on your economic conditions.
- Dreams of Slumber: At S5, this provides the highest damage output for Guinaifen, though you'll need to find accuracy from other sources.
- Predator's Gaze: Offers a large amount of accuracy that Guinaifen needs, allowing you to focus on building other stats in the artifact set.
- World's Impression: If you don't have Mr. Welt but have this helmet, use it for Guinaifen. Its accuracy enhancement effect only activates on ultimates.
- Prolonged Emblem: If paired with Kafka (or other Anemo or Electro characters), this is a very good light helmet for Guinaifen.
- Resolve Like a Glistening Drop of Sweat: Sacrifice Guinaifen's own damage to get the enemy's defense reduction effect, thereby increasing the team's overall damage output.

Conclusion
With the Guinaifen build options above, Honkai: Star Rail players can easily unleash the character's power in various team compositions. You'll need to invest in her for the long term, as Guinaifen is unlikely to peak early on, but Mytour believes that she will become even more valuable over time!
See more: Topaz Building Guide for Patch 1.4