Honkai Star Rail Firefly Light Cone guide: Best 5-star, 4-star, and 3-star LCs

Firefly’s Light Cones (LCs) in Honkai Star Rail are worth considering if you want to optimize the build of this 5-star DPS character. On that note, she follows the Destruction Path, which has a bunch of good options to choose from. Firefly’s kit is tailored to deal AoE Fire DMG based on her Break Effect stat, so ideally you would want to use an LC that can boost her attribute or boost her damage directly.

Let’s look at the best Firefly Light Cone in Honkai Star Rail.

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Best 5-star Firefly Light Cone in Honkai Star Rail

1) Whereabouts Should Dreams Rest

Whereabouts Should Dreams Rest official artwork (Image via HoYoverse)

Arguably the strongest Firefly Light Cone in Honkai Star Rail is “Whereabouts Should Dreams Rest," which is her signature option, tailored to improve her combat potential. Aside from the high HP stat, the LC rolls with a lucrative passive as well.

It increases the wearer’s Break Effect by a whopping 60% and further inflicts Routed on an enemy when they deal Break DMG. The target with the Routed effect will receive a 24% increased Break DMG from the equipping character, and their SPD will be lowered by 20%. Firefly can use these bonuses to unleash massive nukes.

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2) On the Fall of an Aeon

On the Fall of an Aeon (Image via HoYoverse)

The second-best Firefly LC in the 5-star segment is none other than “On the Fall of an Aeon.” Being one of the many options available at the Herta Store makes it accessible equipment, which can be superimposed free of charge.

Besides, the passive from Light Cone increases the wielder’s ATK by eight percent every time they launch an attack. This stacks up to four times, so you get a 36% bonus attribute at the base Superimposition Level.

On the Fall of an Aeon further enhances the character’s DMG by 12% for two turns when they inflict Weakness Break. This is something Firefly should be able to achieve.

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Best 4-star Firefly Light Cone in Honkai Star Rail

1) Indelible Promise

Indelible Promise (Image via HoYoverse)

The Indelible Promise appears to be the only 4-star Light Cone that synergizes with Firefly’s kit in Honkai Star Rail. For starters, it increases her Break Effect by 28%. She can use the stat boost to deal massive Fire DMG.

The passive from the LC also grants a 15% CRIT Rate, to the wielder after they launch their Ultimate ability. Again, the effect will help out Firefly as she enters a buffed state after launching the aforementioned ability.

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2) A Secret Vow

A Secret Vow (Image via HoYoverse)

A Secret Vow might not have a specialized passive, but its raw damage boost can benefit Firefly. To be precise, she will get a 20% DMG increase, which is a direct amplification of her Fire power.

The second portion of the passive also enables Firefly to deal an extra 20% DMG to enemies whose current HP percentage is lower than hers. The opponent should be at lower HP after a few turns, so the effect will be triggered frequently.

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Best 3-star Firefly Light Cone in Honkai Star Rail

Shattered Home (Image via HoYoverse)

As of writing, there aren’t any good 3-star Destruction Light Cones to equip on Firefly. However, if you have to pick something, use Shattered Home. Its passive will enable her to deal 20% more DMG to targets with HP above 50%.

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