Cosette

Cosette - 4-Star Umbra Support character from Stella Sora

Cosette

4-Star
Umbra
Umbra
Support
Melee
Melee
Inquisitive

Lore

Whether the steel claws she'd scavenged or the left hand imbued with special magic, Cosette uses her weapons to break the chains of fate.

Personal Info

Faction Freelance Trekker
Birthday 5.2
VA (JP) Moe Kahara (佳原萌枝)
VA (CN) Tang Meng (唐梦)

Character Statistics

Ascension Bonus: +0 HP +0 ATK

Basic Stats

  • HP
    74,704
  • ATK
    5,495
  • DEF
    190

Combat Stats

  • Crit Rate
    5%
  • Crit DMG
    150%
  • VUL Exploit
    Additional DMG multiplier against targets with negative Elemental RES.
    0%
  • DEF PEN
    Target DEF ignored when dealing DMG.
    0
  • Ignore DEF
    0%

Energy Stats

  • Max Energy
    When reaching the Energy limit, the Trekker Ultimate becomes available.
    285
  • Charge Efficiency (Main)
    100%
  • Charge Efficiency (Support)
    75%

Elemental Stats (Umbra)

  • Umbra DMG
    Additional DMG multiplier when dealing Umbra DMG.
    100%
  • Umbra PEN 0
  • Ignore Umbra RES 0%

Gift Preferences

Loved +50% bonus
Neutral Base points
Hated -20% penalty
Rarity Loved Neutral Hated
3-Star 225 150 120
4-Star 750 500 400
5-Star 3,000 2,000 1,600

Recommended Target: Lv. 30

Reaching Lv. 30 affinity gives you all 6 ATK% milestone bonuses (24% total) plus +1,080 ATK and +10,020 HP. This is the most cost-efficient target before the point requirements increase significantly.

+1,080 ATK +10,020 HP +24% ATK

Total points needed: 316,900

Favorite Gifts (+50% bonus)

3-Star
Card Photo Capturer
Card Photo Capturer +225 pts 1,409 for Lv.30
4-Star
Reflective Photo Capturer
Reflective Photo Capturer +750 pts 423 for Lv.30
5-Star
Ultra-Precision Photo Capturer
Ultra-Precision Photo Capturer +3000 pts 106 for Lv.30
3-Star
Rising Star
Rising Star +225 pts 1,409 for Lv.30
4-Star
Emerging Talent
Emerging Talent +750 pts 423 for Lv.30
5-Star
Shining Star
Shining Star +3000 pts 106 for Lv.30
3-Star
Summer Chill Crushed Ice
Summer Chill Crushed Ice +225 pts 1,409 for Lv.30
4-Star
Fragrant Ice Delight
Fragrant Ice Delight +750 pts 423 for Lv.30
5-Star
Sweet IceFurry
Sweet IceFurry +3000 pts 106 for Lv.30

Disliked Gifts (-20% penalty)

3-Star
Gilded Ceramic Bowl
Gilded Ceramic Bowl 120 pts 2,641 for Lv.30
4-Star
Blossom Porcelain Cup
Blossom Porcelain Cup 400 pts 793 for Lv.30
5-Star
Mystic Potion Kettle
Mystic Potion Kettle 1600 pts 199 for Lv.30

Skills & Abilities

Abyssal Swipe

Attack

Abyssal Swipe - Attack

Nocturn Hooks

Main Skill
CD: 12s

Status Effects:

Umbra Mark: Gloom:
Nocturn Hooks - Main Skill

Abyssal Hunter

Support Skill
CD: 12s

Status Effects:

Umbra Mark: Gloom:
Abyssal Hunter - Support Skill

Dark Apocalypse

Ultimate
CD: 30s Energy: 285

Status Effects:

Umbra Mark: Gloom:
Dark Apocalypse - Ultimate

Status Effects

Umbra Mark: Gloom

A special status applied to the target by some Umbra Trekkers, lasting for 10s. Can be triggered by the attacks of specific Umbra Trekkers. When triggered, removes the status and activates special effects.

Talents (Dupes)

Cosette Shard Total Shards Needed: 300 (10 Dupes)
Blasphemous Moon
Talent 1

Blasphemous Moon

Cosette Shard x60 (2 Dupes)

Main Effect

When Cosette casts a skill, the squad's ATK is increased by 8.4% for 15s.

Total Stat Bonuses (Lv. 1-10)

ATK +80
DEF +20
HP +920
Skill DMG % +4.2 %
Ultimate DMG % +8.6 %
View Level-by-Level Breakdown
Lv.1 ATK Enhancement 40
Lv.2 DEF Enhancement 10
Lv.3 HP Enhancement 460
Lv.4 Skill DMG Boost 2.1%
Lv.5 Ultimate DMG 4.3%
Lv.6 ATK Enhancement 40
Lv.7 DEF Enhancement 10
Lv.8 HP Enhancement 460
Lv.9 Skill DMG Boost 2.1%
Lv.10 Ultimate DMG 4.3%
Extinctive Downpour
Talent 2

Extinctive Downpour

Cosette Shard x60 (2 Dupes)

Main Effect

When Cosette casts an Ultimate, the main Trekker's Umbra DMG is increased by 13.8% for 40s.

Total Stat Bonuses (Lv. 1-10)

ATK +80
DEF +20
HP +920
Skill DMG % +4.2 %
Ultimate DMG % +8.6 %
View Level-by-Level Breakdown
Lv.1 ATK Enhancement 40
Lv.2 DEF Enhancement 10
Lv.3 HP Enhancement 460
Lv.4 Skill DMG Boost 2.1%
Lv.5 Ultimate DMG 4.3%
Lv.6 ATK Enhancement 40
Lv.7 DEF Enhancement 10
Lv.8 HP Enhancement 460
Lv.9 Skill DMG Boost 2.1%
Lv.10 Ultimate DMG 4.3%
Cloud of Embers
Talent 3

Cloud of Embers

Cosette Shard x60 (2 Dupes)

Main Effect

When any squadmate inflicts Umbra Mark on a target, increases the squad's Skill DMG by 13% for 6s.

Total Stat Bonuses (Lv. 1-10)

ATK +80
DEF +20
HP +920
Skill DMG % +4.2 %
Ultimate DMG % +8.6 %
View Level-by-Level Breakdown
Lv.1 ATK Enhancement 40
Lv.2 DEF Enhancement 10
Lv.3 HP Enhancement 460
Lv.4 Skill DMG Boost 2.1%
Lv.5 Ultimate DMG 4.3%
Lv.6 ATK Enhancement 40
Lv.7 DEF Enhancement 10
Lv.8 HP Enhancement 460
Lv.9 Skill DMG Boost 2.1%
Lv.10 Ultimate DMG 4.3%
Determined to Leave
Talent 4

Determined to Leave

Cosette Shard x60 (2 Dupes)

Main Effect

When Cosette deals DMG to a target, there is a 25% chance to increase the main Trekker's ATK by 14% for 15s.

Total Stat Bonuses (Lv. 1-10)

ATK +80
DEF +20
HP +920
Skill DMG % +4.2 %
Ultimate DMG % +8.6 %
View Level-by-Level Breakdown
Lv.1 ATK Enhancement 40
Lv.2 DEF Enhancement 10
Lv.3 HP Enhancement 460
Lv.4 Skill DMG Boost 2.1%
Lv.5 Ultimate DMG 4.3%
Lv.6 ATK Enhancement 40
Lv.7 DEF Enhancement 10
Lv.8 HP Enhancement 460
Lv.9 Skill DMG Boost 2.1%
Lv.10 Ultimate DMG 4.3%
The New Me
Talent 5

The New Me

Cosette Shard x60 (2 Dupes)

Main Effect

When there are 3 Umbra Trekkers in the squad, the squad's Skill DMG is increased by 13%.

Total Stat Bonuses (Lv. 1-10)

ATK +80
DEF +20
HP +920
Skill DMG % +4.2 %
Ultimate DMG % +8.6 %
View Level-by-Level Breakdown
Lv.1 ATK Enhancement 40
Lv.2 DEF Enhancement 10
Lv.3 HP Enhancement 460
Lv.4 Skill DMG Boost 2.1%
Lv.5 Ultimate DMG 4.3%
Lv.6 ATK Enhancement 40
Lv.7 DEF Enhancement 10
Lv.8 HP Enhancement 460
Lv.9 Skill DMG Boost 2.1%
Lv.10 Ultimate DMG 4.3%

Potentials Overview

Main Role

Build 1 - Auto Attack: 5 cards
Build 2 - Skill Damage: 5 cards
Generic Cards: 6 cards
Main Total: 4 cards

Support Role

Build 1 - Crit Build: 5 cards
Build 2 - Mirror Image DPS: 5 cards
Generic Cards: 6 cards
Support Total: 4 cards

Overall Summary

Total Cards (with duplicates): 8 cards
Unique Cards (without duplicates): 8 cards
Main Premium Cards: 4 cards
Support Premium Cards: 4 cards
Total Premium Cards: 8 cards

Potentials

Build 1

A build that allows support Trekkers' attacks to increase the activation frequency of Main Skills.

Nocturn Rip
Nocturn Rip
Nightscar Trace
Nightscar Trace
1
Darkclaw Haunt
Darkclaw Haunt
1
Darkclaw Mark
Darkclaw Mark
1
Darkclaw Etch
Darkclaw Etch

Build 2

A single-target combat build that allows skills to enhance Auto Attacks and inflicts marks.

Netherworld Touch
Netherworld Touch
Nocturn Mark
Nocturn Mark
1
Twilight Wish
Twilight Wish
1
Nightshadow Invasion
Nightshadow Invasion
1
Nightshadow Veil
Nightshadow Veil

Generic

1
Starmark Nether
Starmark Nether
1
Shadowflash Enigma
Shadowflash Enigma
1
Shadowflash Companion
Shadowflash Companion
1
Spectral Ignition
Spectral Ignition
1
Nether Blaze
Nether Blaze
1
Tainted Scar
Tainted Scar

Build 1

A build that enhances claw strike range and pulls targets, synergizing with the main Trekker's attacks.

Abyssal Mark
Abyssal Mark
Eclipse Imprint
Eclipse Imprint
1
Dark: Mirage
Dark: Mirage
1
Dark: Demon Mark
Dark: Demon Mark
1
Dark: Vitality
Dark: Vitality

Build 2

A build that increases the number of claw strikes and boosts the squad's DPS.

Phantom Mark
Phantom Mark
Phantom Inscription
Phantom Inscription
1
Dark: Hallucination
Dark: Hallucination
1
Dark: Form Breaker
Dark: Form Breaker
1
Dark: Afterglow
Dark: Afterglow

Generic

1
Gift of Darkness
Gift of Darkness
1
Void Blessing
Void Blessing
1
Phantom Shelter
Phantom Shelter
1
Spectral Ignition
Spectral Ignition
1
Nether Blaze
Nether Blaze
1
Tainted Scar
Tainted Scar