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Ever since the beginning of the Penacony main story inHonkai: Star Rail, Firefly has been one of the most outshining and anticipated characters. After the Version 2.3 update, you’re able to finally play as this character once you successfully summon her on the limited-time banner, and she brings quite a lot to the table.
Firefly is a five-star Destruction character with Fire as her combat type. Even though you’re summoning the girl that you loved from the main story, you’ll mostly be playing as her mech form in the battle known as the Stellaron Hunter, Sam.
Updated on Jun 23, 2025, by Sanyam Jain:With time, the Break-based playstyle that Firefly thrives on has released a ton of updates, including various new support characters. To help you with this play style, we’ve added a bunch of tips to play Firefly.
Best Firefly Relics And Planar Ornaments
Once you get a character in Honkai: Star Rail, the first step is tofully upgrade them using the Stagnant Shadow materialsand then work on their Traces. However, once you’re done with all that, you’ll have to focus most of your Trailblaze Power to get the best Relics and Planar Ornaments available on your account.
Since the Power is quite limited, you wouldn’t want to spend it upgrading the wrong gear. Here aresome of the best gear that you’re able to find while building Firefly:
Relics
Iron Cavalry Against The Scourge
This Relic set got released to the game alongside Firefly, and it’s also her best in slot. It increases her Break DMG by 16 percent while also allowing her toignore a whopping 25 percent DEFwhile attacking an enemy.
To trigger this effect, you’ll need to build at least a 250 percent Break Effect on her, but thiscounts the Break Effect that you get from other sourcesduring the battle.
Thief Of Shooting Meteor
This starter Relic set is your only other choice if you can’t farm for the Iron Cavalry set just yet. It gives you up to 32 percent Break Effectwhile also regenerating some Energy when you break an enemy’s weakness.
Planar Ornaments
Forge Of The Kalpagni Lantern
Once again, the Planar Ornament set released alongside Firefly is her best in slot for clear reasons. It gives her some extra SPD while alsoincreasing her Break Effect by a whopping 40 percent.
You simply have toattack an enemy with Fire Weaknessto get the Break Effect, which is already a necessity for Firefly.
Talia: Kingdom Of Banditry
This set can give you up to36 percent Break Effect as long as you have 145 SPD, which is quite easy to get with Firefly. However, it’s difficult to farm and gives far less value than her best in slot.
Firefly Relic Stat Priority
While Firefly might be a main DPS, the stats you’ll be looking for when it comes to her Relicsare completely differentfrom most DPS units. Here’s what you need the most on her:
Break Effect
SPD > ATK Percent
You don’t need to build any Crit on Firefly as shedoesn’t deal a lot of personal damageeven with maximum upgrades.
Ideally, you need at least 360 percent Break Effect on Firefly as this is themaximum multiplier that gets taken into account with her kit. Moreover, you’d want to have at least150 SPD without any external SPD enhancementto get multiple turns during her Ultimate.
Best Firefly Light Cones
One of the main steps as you attempt to build Firefly is getting a proper Light Cone for her. Whileyou do have quite a few choices for this, most of the Light Cones don’t suit her completely due to the unique kit:
1
Whereabouts Should Dreams Rest
It’s no surprise that Firefly’s signature Light Cone works the best for her. Apart from a massive 60 percent Break Effect, this alsoincreases the Break DMG taken by enemieswhile decreasing their SPD.
2
On The Fall Of An Aeon
With this F2P-friendly Light Cone, you can get an ATK boost of up to 64 percent with maximum Refinements. While thisATK bonus doesn’t directly benefit Firefly, it does get converted to your Break Effect after a certain point.
3
The Moles Welcome You
The reason to use this Light Cone is similar to the one above. ATK Percent is one of the important stats on Firefly asit gets converted into Break Effectafter you have over 1,800.
4
Flames Afar
This is another F2P-friendly Light Cone that can be decent for her as it lets her stay at arelatively higher health while increasing her DMG.
Firefly Traces Overview And Priority
Before you start upgrading anything related to Firefly, it’s quite important to understand what she doessince this DPS unit doesn’t function like any other. You won’t be able to see her dealing massive damage when you trigger her abilities since most of her damage is locked behind the enemies' Weakness being broken.
Here are the main points that’ll help you understand her kit:
As you might already understand, most of Firefly’s DMG is locked behind breaking the enemy’s Weaknesses. With this in mind, you’d want to upgrade herUltimate first as it gives her a ton of SPD and Break DMG boost. The increase in SPD might be little with each level, but it’s more significant than you might think.
After that, you may upgrade her Skill followed by her Talent. The formerincreases the Energy she gains with each normal Skillwhile the latter reduces her DMG taken and increases her Effect RES. If you’re consistently using her with a goodshielder like Aventurine, you can skip her Talent.
It’s highly important to unlockvarious Bonus Abilities for Firefly as soon as you cansince some main parts of her kit are locked behind them.
Finally, you can alsoskip Firefly’s Basic Attack upgradesif you want to save some resources.
Pro Tips To Play Firefly
You might be able to easily defeat everything with Firefly in the overworld, but you’ll need to use afew tricks if you want to efficiently use herin the endgame content:
