Stella Sora

Firefly Guide

Firefly Guide collects build notes, tier position, skills, stats, teams, and related Stella Sora guides.

Firefly

5★ Lux Versatile Ranged

Basic Information

Name: Firefly
Element: Lux
Class: Versatile
Attack Type: Ranged
Grade: 5★
Name: Firefly
Birthday: May 5th
Affiliation: Grace Light Academy
Skills: Combat, Monolith climbing
Address: Room 2707, Building 7, Grace Light Academy Dormitory, Emor City
Experience: 1 year
Weapon: Avalanche
Rate: For commission inquiries, please contact temporary guardian Canace

Stats (Level 90)

ATK 7484

HP 51179

DEF 190

Skills

Meteor Arrow Normal

Throws electromagnetic darts at the target, dealing DMG.

Star Barrage Skill · 20s

Firefly enters Artillery Form, transforming Avalanches into Avalanche: Floating Cannons to attack the target for a period of time.Avalanche: Floating Cannons can trigger Lux Mark and generate Glimmer.

Starflare Pursuit Support · 24s

Firefly enters Sword Form, transforming Avalanches into Avalanche: Giant Sword and Avalanche: Flying Blades to attack the target for a period of time.Avalanche: Giant Sword and Avalanche: Flying Blades can inflict Lux Mark: Radiance.

Stellar Torrent Ultimate · 40s

Combines Avalanches into gigantic cannons and continuously fires at the target, then combines them into a giant sword to strike the target, dealing multiple instances of DMG.

Potentials

Firefly Glow: Radiance Lv.1

Avalanche: Floating Cannons attack the target simultaneously, dealing DMG. Can trigger Lux Mark.

Firefly Glow: Luminary Lv.1

After Avalanche: Floating Cannons deal multiple instances of DMG to the same target, increases own Auto Attack DMG.

Tide of Starmarks Lv.3

When Avalanche: Floating Cannons deal DMG to the boss or elite targets, increases the squad's Base ATK.

Radiant Rainfall Lv.3

While Firefly is in Artillery Form, Avalanche: Floating Cannons periodically fire a volley at the target, dealing bonus DMG. Can trigger Lux Mark.

Lone Star Gleam Lv.3

Increases Firefly's Auto Attack DMG dealt to lone targets.

Firefly Glow: Convergence Lv.1

When dealing DMG, Avalanche: Floating Cannons generate Scorching Sunray that continuously attacks the target's position. Can trigger Lux Mark.

Firefly Glow: Scatter Beam Lv.1

The beams fired by Avalanche: Floating Cannons can refract, simultaneously dealing DMG to multiple targets. Can trigger Lux Mark.

Astral Album Lv.3

When casting the Main Skill, Firefly shoots an energy round, dealing AoE DMG. Can trigger Lux Mark.

Luminous Rhythm Lv.3

Increases Skill DMG dealt by Avalanche: Floating Cannons at set intervals.

Flash Resonance Lv.3

When Avalanche: Floating Cannons hit different targets afflicted with Lux Marks, increases the squad's Base ATK.

Blazing Radiance Lv.3

Increases Firefly's Mark DMG.Every time Firefly triggers Lux Mark, increases own Lux DMG.

Phantom Blast Lv.3

Increases the number of times Firefly can dodge.After dodging, Firefly deals Lux DMG to nearby targets and stuns them. Can trigger Lux Mark.

Absolute Brilliance Lv.3

The Ultimate can trigger Lux Mark. When the mark is triggered, increases own Base ATK.

Persistent Warmth Lv.3

After Firefly casts the Ultimate, increases her Lux DMG the next time she casts a skill.

Ultimate Radiance Lv.3

Increases the Ultimate DMG dealt by Firefly's Ultimate.

Radiance of Shattered Stars Lv.3

Increases the Ultimate DMG dealt by Firefly's Ultimate to targets with low HP.

Radiance Blade: Twin Shadow Lv.1

In an all-Lux squad, casting the Support Skill grants additional Avalanche: Flying Blades.Whenever Avalanche: Flying Blade deals DMG, increases own Skill DMG and Skill Crit Rate.

Radiance Blade: Firefly Lv.1

Increases the Skill Crit Rate of Avalanche: Flying Blade when it deals DMG.Whenever Avalanche: Flying Blade deals DMG, it deals additional AoE DMG and inflicts Lux Mark: Radiance.

Lightforged Blade Lv.3

After the Lux Main Trekker triggers Lux Mark and generates Lucent, increases the Skill Crit Rate and Skill DMG of Avalanche: Flying Blade the next time Firefly is in Sword Form.

Stellar Crash Lv.3

When the Lux Main Trekker deals Skill DMG, generates Avalanche: Flying Blade to strike the target, dealing additional DMG and inflicting Lux Mark: Radiance.When this Avalanche: Flying Blade deals DMG, it increases the target's Lux DMG Taken based on the number of Light Curtain stacks on the target.

Blade of Falling Petals Lv.3

When Sword Form ends, Firefly commands all Avalanches to strike targets around her, dealing AoE DMG and inflicting Lux Mark: Radiance.Increases Firefly's Skill Crit DMG each time this effect deals DMG.

Radiance Blade: Blazing Edge Lv.1

In an all-Lux squad, increases the attack range and Auto Attack DMG of Avalanche: Giant Sword.Whenever Avalanche: Giant Sword attacks, it triggers an additional attack, dealing DMG and inflicting Lux Mark: Radiance.

Radiance Blade: Pursuing Slash Lv.1

After Avalanche: Giant Sword attacks a certain number of times, Firefly automatically casts Dominating Slash, dealing DMG and inflicting Lux Mark: Radiance.

Blade Flash Lv.3

While Firefly is in Sword Form, increases the Auto Attack DMG dealt by Avalanche: Giant Sword over time.Increases Firefly's Movement SPD when she is too far from her target or has no target.

Radiant Ripple Lv.3

When Avalanche: Giant Sword deals DMG, it deals additional AoE DMG and inflicts Lux Mark: Radiance.

Luminous Onslaught Lv.3

When the Main Trekker triggers Lux Mark and generates Thunderbolt while Firefly is on the battlefield, increases her own Base ATK and the Lux DMG Taken of nearby targets.

Sanctuary of Light Lv.3

Firefly's Ultimate can inflict Lux Mark: Radiance.When Firefly casts the Ultimate, the Lux Main Trekker gains a shield.

Cosmic Brilliance Lv.3

When Firefly casts the Support Skill, increases the Base ATK of Lux Trekkers in the squad.

Domain of Purity Lv.3

Increases the squad's Lux DMG in an all-Lux squad.When Firefly is on the battlefield, additionally increases the squad's Lux DMG.

Persistent Warmth Lv.3

After Firefly casts the Ultimate, increases her Lux DMG the next time she casts a skill.

Ultimate Radiance Lv.3

Increases the Ultimate DMG dealt by Firefly's Ultimate.

Radiance of Shattered Stars Lv.3

Increases the Ultimate DMG dealt by Firefly's Ultimate to targets with low HP.

Talents

HP Enhancement

Increases Base ATK by 50.

main

Photon Diffusion

When the squad triggers a Lux Mark on a target, increases the Lux DMG Taken by this target by 14% for 6.0s.

main

Improved Potential: Main

Increases Base DEF by 10.

atk

ATK Enhancement

Increases Base HP by 575.

main

Improved Potential: Main

Increases ATK by 2%

def

DEF Enhancement

Increases Skill DMG by 2%

main

Improved Skill: Auto Attack

Increases Base ATK by 50.

HP Enhancement

Increases Base DEF by 10.

main

Improved Potential: Generic

Increases Base HP by 575.

atk

ATK Enhancement

Increases ATK by 2%

main

Improved Skill: Support

Increases Skill DMG by 2%

HP Enhancement

Increases Base ATK by 50.

main

Shining Blades

After Firefly casts a skill, her ATK is increased by 20% for 30.0s.

main

Improved Potential: Main

Increases Base DEF by 10.

atk

ATK Enhancement

Increases Base HP by 575.

main

Improved Potential: Main

Increases ATK by 2%

def

DEF Enhancement

Increases Skill DMG by 2%

main

Improved Skill: Main

Increases Base ATK by 50.

HP Enhancement

Increases Base DEF by 10.

main

Improved Potential: Generic

Increases Base HP by 575.

atk

ATK Enhancement

Increases ATK by 2%

main

Improved Skill: Support

Increases Skill DMG by 2%

def

DEF Enhancement

Increases Base ATK by 50.

main

Plushie and Safehouse

After Firefly deals DMG to a target, increases the Lux DMG Taken by the target by 2% for 8.0s, stacking up to 7 times.

main

Improved Potential: Main

Increases Base DEF by 10.

HP Enhancement

Increases Base HP by 575.

main

Improved Potential: Main

Increases ATK by 2%

def

DEF Enhancement

Increases Skill DMG by 2%

main

Improved Potential: Generic

Increases Base ATK by 50.

HP Enhancement

Increases Base DEF by 10.

main

Improved Skill: Auto Attack

Increases Base HP by 575.

atk

ATK Enhancement

Increases ATK by 2%

main

Improved Potential: Generic

Increases Skill DMG by 2%

HP Enhancement

Increases Base ATK by 50.

main

Wings and Secret Friends

When any Trekker inflicts Lux Mark on a target, increases Firefly's ATK by 20% for 10.0s.

main

Improved Potential: Main

Increases Base DEF by 10.

atk

ATK Enhancement

Increases Base HP by 575.

main

Improved Potential: Main

Increases ATK by 2%

def

DEF Enhancement

Increases Skill DMG by 2%

main

Improved Skill: Main

Increases Base ATK by 50.

HP Enhancement

Increases Base DEF by 10.

main

Improved Potential: Generic

Increases Base HP by 575.

atk

ATK Enhancement

Increases ATK by 2%

main

Improved Skill: Support

Increases Skill DMG by 2%

main

Improved Potential: Main

Increases Base ATK by 50.

main

Armaments and Angel Heart

Increases Firefly's Lux DMG to elite or higher-tier targets by 0.0%.

main

Improved Potential: Main

Increases Base DEF by 10.

HP Enhancement

Increases Base HP by 575.

main

Improved Potential: Main

Increases ATK by 2%

main

Improved Potential: Main

Increases Skill DMG by 2%

main

Improved Skill: Auto Attack

Increases Base ATK by 50.

atk

ATK Enhancement

Increases Base DEF by 10.

main

Improved Potential: Generic

Increases Base HP by 575.

HP Enhancement

Increases ATK by 2%

main

Improved Skill: Main

Increases Skill DMG by 2%

Character Lines

Hm... Are you here to take me back to school? Oh, you're not? Then let's play together!

Play ... just a little longer? Then I'll go home, really.

I'm not just an ordinary kid. So I can protect Tyrant well.

Make memories together with me?

Archive

Reason for Becoming a Trekker

Huh? I'm a Trekker?

CV Excerpt 1

Interests Fun things, things I have never seen before... And having someone to play with me!

CV Excerpt 2

Self-Introduction Firefly can take you flying, way up high, and can beat up bad guys...! Firefly is super amazing!

CV Excerpt 3

Experiences: This week: had so much fun at the Monolith! Last week: had so much fun at the Monolith! The week before last: had so much fun at the Monolith!

CV Excerpt 4

Sherlock Safehouse My room has lots and lots of Sherlock plushies, and penguin pajamas, and also... A present from ==PLAYER_NAME==!

CV Excerpt 5

Excerpt from Mission Report Today, professor had me carry a clay jar and fly back and forth over the fields. She said the powder inside had to be scattered across the farmland so the bad bugs would move away and the crops would grow well. I completed it perfectly!

Peer Comments

She always looks at me with those puppy eyes, and it is so cute my heart just melts. —Noya Noya, are you sure that's not her threat level assessment look? —Iris What a remarkable child. If only she were willing to come to my lab. —Coronis

TA Feedback

Basically accurate. But could Canace please teach her how to write a proper résumé? —Willow

Appendix

Invitation Do you want to go play at the Monolith? Just the two of us, like before!

The Terrifying Humanoid Weapon

"I heard that special-admit student lives here, Room 7 on the 27th floor... Huh? She's not here?" "Forget it, let's go back. Sneaking up here like this feels kinda like breaking and entering. Besides, she's just a special-admit student, right? If we just wait, we can see her in class later." "She's hard to catch during class. You haven't even seen the weapon she has behind her! Ah, looks like she's not here today. Weird, though. She used to be here every day..." What the two of them never noticed was that the special-admit student they were talking about—Firefly—had just flown over their heads. "Today is the weekly sneak-out day!" Firefly did not dislike her daily life. The town had houses that kept her dry and warm, and there was hot food to eat. But it did not have any "friends" who would play with her. Aside from Canace, everyone turned and walked away the moment they saw her. It was so boring... She flew out past the city and over the river. The world below gradually turned green, and she picked a forest with a pretty shape and dropped down into it. It was still a little way from the Monolith, but there were plenty of monsters along the way. Maybe they would be willing to play hide-and-seek with her, Firefly thought. When she landed, she stepped on something soft. It was a stuffed toy caked in mud and dirty water. Beneath all that grime, it was a pink teddy bear. Firefly picked it up and looked around, but there was no sign of any Trekker nearby. "Did you get separated from your friend?" Holding the grimy pink bear in her arms, Firefly went from one monster to the next, asking after its owner. "Do you know who dropped this?" "I'm not trying to play with you. I'm looking for the little bear's friend!" "Have you seen... Ah, it ran away..." ... By the time it started getting dark, the pink bear still had not found its owner. "The sun's going down. Professor said I have to be back before dark." Firefly crouched by the river and gave the pink bear a bath. Then she brought it back to the academy and set it by the window in her room to dry. "Tomorrow, let's go to the Monolith and ask others." "Tomorrow... How am I going to sneak out?" "When will I make a friend who'll play with me?" Clutching a penguin plushie in her arms, Firefly stared at the little bear's shadow on the windowsill and drifted off to sleep.

First Encounter

Canace could never quite put her feelings for Firefly into words. She could not explain why she had chosen to get involved, or why she had fought so hard to save the girl. Perhaps it was simply because she saw a reflection of her former self, who had once lost her freedom. "This... Fly!" Firefly had only just learned a few words. Sitting in the corner, she pointed at her remote cannons and then at Canace, gesturing with great seriousness as she tried to make herself understood. "Up! High! Together!" "You!" Canace studied her earnest little face, trying to work out what she meant. Firefly kept gesturing for a while, then seemed to realize Canace still did not understand. She got to her feet, grabbed Canace's hand, and tried to lift her up into the air. But she was still too small to carry an adult. The cannons behind her bobbed up and down, unsteady in the air, like a firefly beating its wings as hard as it could. So that was what she had meant. She wanted to take Canace flying with her. Canace laughed and stroked her hair. "You're still little, Firefly. You're not strong enough yet. Eat plenty, and one day you'll be able to carry me with you." Firefly tilted her head, not looking as though she had fully understood. Long sentences were still difficult for her. But she could tell from Canace's voice that she was being gentle, and she nodded very seriously. A few days later, screams started ringing out all over campus. By the time Canace arrived, Firefly was flying low over the training field like a hawk diving on prey, swooping down to snatch up the younger children. Then she spotted Canace in the distance. Grabbing hold of a little girl, she flew straight over to her, her face bright with anticipation, plainly waiting to be praised: look, I can pick someone up and fly with them now! It seemed she had gotten the wrong idea....

Weapon Anecdote: Avalanche

That weapon looked cold and cruel to anyone who laid eyes on it. The price of wielding it was so immense that, no matter how many people tried, none could use it. Even the best-trained soldiers and the academy's finest elites buckled under its pressure. Then the girl appeared. She reached out and laid a hand on it, nothing more than a curious touch. But the instant her palm made contact, the "device" lit up. It split into four parts, circled above her head a few times, then came to rest behind her. It was a gift she had been born with—more than that, it felt like fate. "... New friend?" The girl spun around where she stood, trying to face this sudden new "friend," but she was like a kitten chasing its own tail, never quite able to catch it. After turning around a few times, she gave up. It felt pretty nice, really, having this friend stay behind her all the time. "Well, let us play together from now on...!" Her "friend" responded to that thought. The girl's feet slowly lifted from the ground until she was floating in the air. Then the four pillar-like "wings" swung forward at once, unleashing a torrent of heat fierce enough to destroy anything in its path. The girl laughed happily in mid-air. "This is so fun!" She was still too young to understand what this weapon would one day bring her...

Tier Position

Not ranked yet