The Dahlia Build, Light Cones & Teams | Honkai: Star Rail

The Dahlia (Constance) is a 5-star Fire Nihility character who functions as a specialized Super Break support in Honkai: Star Rail. Her kit revolves around deploying a Zone that increases Weakness Break Efficiency and enables Super Break damage even before enemies are broken. With her ability to designate a "Dance Partner" and provide massive Break Effect buffs to the team, The Dahlia has established herself as a cornerstone support for Break-focused teams, particularly those featuring Firefly. This comprehensive Dahlia build guide covers her complete build optimization, team synergies, refined team compositions, and stat optimization strategies.

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The Dahlia Character Overview

The Dahlia represents one of Honkai: Star Rail's Break support units. Her position as a Super Break team enabler comes from her ability to deploy a Zone that converts Toughness Reduction into Super Break damage and her capacity to designate a Dance Partner who gains additional benefits. As a 5-star Nihility character, she excels at providing team-wide Break Effect amplification and dealing follow-up attack damage.

The Dahlia's gameplay revolves around managing her Zone effect, which can be deployed through her Skill. This Zone lasts for 3 turns and increases all allies' Weakness Break Efficiency by 50% while allowing Toughness damage dealt to enemies who are not yet broken to be converted into Super Break damage. This mechanic is revolutionary as it allows Break teams to deal damage consistently without waiting for the enemy's Toughness bar to deplete.

Her Talent automatically assigns Dance Partner status to herself and one ally with the highest Break Effect. When the Dance Partner attacks a broken target, the Toughness reduction becomes Super Break damage. Additionally, when the Dance Partner attacks, The Dahlia launches follow-up attacks that convert their Toughness reduction into Super Break damage at 200% effectiveness.

Her Ultimate, Wallow... Entombed Ash, applies the Wilt debuff for 4 turns, reducing enemy Defense and applying the weakness types of all Dance Partners to all enemies. This ability defines her role as a Break team enabler, allowing teams to bypass enemy resistances and trigger Weakness Breaks more consistently.

The Dahlia Trace Priority

The Dahlia's Skill takes absolute priority for leveling, as it deploys the Zone that is central to her entire kit. The Zone's ability to convert Toughness damage into Super Break damage makes this the most impactful investment for her supporting capabilities.

The Dahlia's Ultimate should be the second priority as it provides crucial Defense reduction and applies the Dance Partners' elemental weaknesses to all enemies, making it significantly easier for allies to trigger Weakness Break.

The Dahlia's Talent is the third priority as it determines the Dance Partner mechanics and enables her follow-up attacks. While important, the base functionality works well even at lower levels.

The Dahlia's Basic ATK is the lowest priority as she primarily supports through her Skill, Ultimate, and Talent. Her basic attack is rarely used in optimal rotations.

The Dahlia Best Light Cones

1. 5-Star Options

The Dahlia's best Light Cone is Never Forget Her Flame, her signature weapon, which provides a massive 60% Break Effect at S1 and increases Break DMG dealt by the wearer and another teammate who triggered combat by 32%. Additionally, when the wearer applies Weakness to an enemy target, it recovers 1 Skill Point, with the trigger count resetting when using Ultimate. This Light Cone perfectly complements her kit by maximizing her Break Effect while providing crucial Skill Point economy.

2. Alternative & F2P Options

Long Road Leads Home serves as an excellent alternative F2P option for The Dahlia. This is Fugue's signature Light Cone that provides Break Effect and Break support utility, making it highly compatible with The Dahlia's kit.

Alternatively, The Dahlia can use Resolution Shines As Pearls of Sweat, a 4-star Light Cone that provides DEF reduction to enemies through debuffs, which synergizes well with her role in Break teams.

For players who have access to Herta's store, Solitary Healing is also a solid option that helps The Dahlia reach her required Break Effect breakpoints while providing some energy regeneration.

Holiday Thermae Escapade is another viable option available through Nameless Glory, offering DMG increase and applying Vulnerability to enemies after attacking.

The Dahlia Relics, Ornaments & Stats Priority

1. Relics

The 4-piece Iron Cavalry Against the Scourge set is the best choice for The Dahlia. It increases the wearer's Break Effect by 16%, and if Break Effect is 150% or higher, the Break DMG dealt to the enemy target ignores 10% of their DEF. If Break Effect is 250% or higher, the Super Break DMG dealt to the enemy target additionally ignores 15% of their DEF. This set perfectly aligns with The Dahlia's stat priorities and provides massive damage scaling at high Break Effect values.

Alternatively, the 4-piece Thief of Shooting Meteor set is viable, increasing the wearer's Break Effect by 16% and regenerating 3 Energy after the wearer inflicts Weakness Break on an enemy. While functional, it's less recommended than Iron Cavalry for The Dahlia.

For players who need more Speed, a 2-piece combination using Messenger Traversing Hackerspace or Sacerdos' Relived Ordeal can provide the necessary SPD boost.

2. Planar Ornaments

The Dahlia's best-in-slot planar set is Forge of the Kalpagni Lantern, providing 6% SPD and when the wearer hits an enemy target that has Fire Weakness, the wearer's Break Effect increases by 40%, lasting for 1 turn.

Talia: Kingdom of Banditry is an excellent alternative choice, providing massive Break Effect increases when the wearer's SPD reaches 145 or higher.

Sprightly Vonwacq is ideal for improving rotation speed and letting her use her Ultimate more frequently.

3. Stats Priority

The Dahlia Team Compositions

Due to how The Dahlia's kit works, she excels in Break-focused teams, particularly those featuring high Break Effect DPS characters. Her Zone enables Super Break damage before enemies are broken, making her ideal for teams that rely on Toughness reduction.

1. Firefly Teams

Firefly is The Dahlia's ideal partner, as The Dahlia's passive is designed around Fire-type Break DPS characters. The combination of Firefly's high Fire Toughness damage and The Dahlia's Zone creates one of the strongest Super Break teams in the game. Fugue provides additional Break Effect support and Exo-Toughness for the premium setup, while Ruan Mei offers team-wide buffs and Break Efficiency. For F2P players, Harmony Trailblazer (HMC) provides Super Break enabling and works excellently with The Dahlia. Lingsha is the preferred sustain for her additional Break Effect and healing, while Gallagher offers budget-friendly sustain with Break capabilities.

2. Rappa Teams

Rappa benefits significantly from The Dahlia's Super Break conversion mechanics, as her kit revolves around dealing massive Imaginary Toughness damage through her enhanced Basic ATKs. The Dahlia's Zone allows Rappa to convert her Toughness reduction into immediate damage even before enemies are broken, increasing her damage output. Fugue's Exo-Toughness synergizes perfectly with Rappa's multi-hit attacks, while Ruan Mei provides Break Efficiency and Weakness Break extension. Lingsha or Gallagher complete the team with sustain and additional Break support.

3. Boothill Teams

Boothill's single-target Break damage pairs well with The Dahlia's Zone and Defense reduction from her Ultimate. The Dahlia's ability to apply elemental weaknesses through her Ultimate helps Boothill trigger Weakness Breaks more consistently, especially against enemies that don't have Physical weakness naturally. Fugue provides additional Break Effect and Exo-Toughness to amplify Boothill's Break damage, while Ruan Mei offers team-wide buffs. Any sustain unit works, though Lingsha and Gallagher are preferred for their Break Effect contributions.

The Dahlia Eidolons

Eidolon 1

The Dahlia's E1 extends her Super Break multiplier to all allies rather than just her Dance Partner, while also adding substantial fixed Toughness damage after Dance Partner attacks. This Eidolon is extremely high value because it increases team-wide Break damage and accelerates Weakness Breaks. For most players, E1 is the most impactful stopping point for investment.

Eidolon 2

The Dahlia's E2 deepens enemy debuffs by adding All-Type Resistance reduction of 20% to the Wilt debuff and automatically applying Wilt as enemies enter the field. This improves consistency and convenience by ensuring the debuff is always active. Combined with E1, E2 makes The Dahlia a complete Break team support and represents the optimal investment threshold for most players.

Eidolon 4

The Dahlia's E4 increases the instances of DMG dealt by Talent's Follow-Up ATK by 5, and every hit increases the target's DMG taken by 12%.

Eidolon 6

The Dahlia's E6 grants 150% Break Effect to all Dance Partners and advances their next action by 20% when using her Talent's Follow-Up ATK.

Conclusion

The Dahlia is an exceptionally powerful Super Break support unit who revolutionizes Break-focused teams in Honkai: Star Rail. Her gameplay focuses on maintaining her Zone effect, strategically using her Ultimate for Defense reduction and Weakness application, and leveraging the Dance Partner mechanic to convert Toughness damage into devastating Super Break hits. Building her with high Break Effect and SPD allows her to maximize both her personal damage and team support potential.

In Break-focused teams, especially paired with Firefly, The Dahlia provides high damage amplification, enabling Super Break damage before enemies are even broken. She's most effective when used as the primary Break support who fundamentally changes how Break teams operate. With proper build and timing, The Dahlia becomes a cornerstone that elevates any Break-focused lineup to top-tier performance.

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