Otoha (Laser) ✏️

Cosette

Cosette occupies this team's Main slot as she is able to provide high amounts of Umbra DMG Taken debuffs through her potentials and Main Skill.

★ Key Notes:
• If you can, use Cosette's Main Skill within the AA1-AA3 attack sequence to prevent Twilight Wish stacks from expiring.
• Nightscar Trace allows Cosette to use her Main Skill more often because of its synergy with Otoha's ability to dish out Critical hits.
• You can take Nightshadow Veil to maintain the Umbra DMG buff gained from Those With Ambition's Harmony Skill or to simply have better survivability.

Skill

1/10/1/1 (Main Skill only)

Nocturn Hooks (Main Skill) is the only skill that you should upgrade since it scales the amount of Umbra DMG Taken debuff based on its level.

Potential

Priority

Nightscar Trace

When any other friendly unit lands a Crit Hit, reduces the Cooldown of Nocturn Hooks (Main Skill) by 1s, and leaves claw marks at the target's location, dealing 21.4% of Cosette's ATK as AoE Umbra Skill DMG and inflicting Umbra Mark: Gloom.
This effect can only be triggered 5 times per Skill cast.

Nocturn Mark

When Cosette inflicts Umbra Mark: Gloom on the same target for the 3rd time, leaves claw marks, dealing 39.3% of ATK as AoE Umbra Skill DMG, increasing the target's Umbra DMG Taken by 32% for 3s, and inflicting Umbra Mark: Gloom. This effect can only be triggered once per second.

6

Darkclaw Haunt 6

When Nocturn Hooks (Main Skill) deals DMG, increases the targets' Umbra DMG Taken by 52% for 5s, up to 3 stacks.

6

Twilight Wish 6

When Cosette uses Auto Attacks, increases all friendly units' ATK by 14% for 2s, stacking up to 5 times.

6

Nether Blaze 6

When Dark Apocalypse (Ultimate) deals damage, increases the target's Umbra DMG Taken by 147% for 10s.
Param4: 1 (BuffValue,LaminatedNum)

Optional

1+

Darkclaw Etch 1+

When casting Nocturn Hooks (Main Skill), increases all friendly units' ATK by 9% for 8s.

1+

Shadowflash Companion 1+

Cosette can dodge through barriers.
When dodging, increases her Attack Speed by 11% for 3s.

1+

Nightshadow Veil 1+

After Cosette deals 5 instances of Auto Attack DMG, she gains a shield equal to 10% of her Base Max HP for 5s. This effect can only be triggered once every 6s.

Emblem

Otoha

Otoha's laser build revolves on the Soul Rend effect applied by Weeping Sky. This is a mandatory condition for both Night-Walker's Doomfall procs and the 80% triple-laser chance from Solitary Lantern. In contrast to other team comps, this build deals Ultimate DMG (not to be confused with a traditional Ultimate build like Fuyuka).

★ Key Notes:
• Devouring Shadow provides a unique DEF PEN buff that requires Otoha to be in an all-Umbra team to work.
• Do not let her Support Skill miss as this is the only way to inflict Soul Rend to the enemy.
• Try to use her Ultimate while her Support Skill is on cooldown to take advantage of Without A Trace.
• Hollow Steps allows Otoha to frequently do critical hits, synergizing with Cosette's Nightscar Trace potential.
• Having a +1 level of Solitary Lantern on your emblem is a big priority for this build as its Ultimate Crit Rate buff gets doubled at Lv 7.

Skill

1/1/10/1 (Support Skill only)

Shattered Edge (Support Skill) is the only skill to prioritize for Otoha as Night-Walker's DMG scales based on this skill's level.

Potential

Priority

Lonely Twin Shadows

Increases Soul Rend duration to 11s.
When Otoha deals Ultimate DMG, reduces Ultimate Cooldown by 1.2s and gain 9 Energy. This effect can be triggered once every 1s.
Increases Otoha's Ultimate DMG by 32.2% and Ultimate Crit Rate by 5%.

Night-Walker

When the Main Umbra Trekker deals DMG to a target with Soul Rend, Otoha summons Doomfall, dealing 306% of ATK as AoE Umbra Ultimate DMG and gaining 9 Energy. This effect can be triggered once every 1s.
Increases Otoha's Ultimate DMG by 14% and Ultimate Crit Rate by 10%.

6

Solitary Lantern 6

When Otoha deals Ultimate DMG, there is a 80% chance to shoot 3 times, each dealing 244% of ATK as AoE Umbra Ultimate DMG. This effect can only be triggered once every 2s.
Increases Otoha's Ultimate Crit Rate by 15%.

6

Devouring Shadow 6

In an all-Umbra squad, increases Umbra Trekkers' Umbra DMG by 18% and DEF PEN by 100.

6

Without A Trace 6

When Shattered Edge (Support Skill) is on cooldown, increases Otoha's Ultimate DMG by 153%.

6

Hollow Steps 6

When any Umbra Trekker casts a Main Skill or Support Skill, increases Otoha's Ultimate Crit Rate by 3% and Ultimate Crit DMG by 9.3% for 6.5s, up to 5 stacks.

Optional

1+

Silent Knell 1+

Void Blossom (Ultimate) inflicts Umbra Mark: Gloom. Increases Otoha's ATK by 13%.

1+

Blossom-Eroded Abyss 1+

The parasol thrown by Void Blossom (Ultimate) pulls in nearby targets. Increases Otoha's Umbra DMG by 12%.

1+

Murmur of Annihilation 1+

Each Umbra Trekker in the squad increases all Umbra teammates' Umbra DMG by 3%.

Emblem

Mistique

Mistique acts as a sub-DPS and debuffer for the team using her typical minion build plus Solar Absorption.

Skill

1/1/10/1 (Support Skill only)

Summoning Circle (Support Skill) is where all of Mistique's DPS comes from. The Minion DMG dealt by her summoned minions scales based on this skill's level.

Potential

Priority

Happy Face

Increases the duration of the magic circle by 3s.
Also increases the Minion DMG of Lanterna Phantoms by 24%.

Reality Erosion

Increases the Minion DMG of the Lanterna Phantoms summoned by the same magic circle by 17.1% each time, up to 10 times. The summoned Lanterna Phantoms also grow larger over time.

6

The Conjuring 6

Reduces the intervals between each summon of a Lanterna Phantom by 30%.

6

Shadow Shackle 6

When Mistique summons a Lanterna Phantom, increases her Minion DMG by 18.6% for 5s, up to 10 stacks.

6

Solar Absorption 6

Increases the Umbra DMG Taken of targets within the magic circle by 53%.

6

Twin Born 6

There is a 21% chance the Support Skill can summon one more Lanterna Phantom.

Optional

1+

Wraith Haunting 1+

Increases Lanterna Phantoms' Minion DMG by 20%.

Emblem

Coronis

If you do not have Mistique, Coronis is the final alternative to take her place. Her role for the team is to provide ATK% and Umbra DMG Taken debuffs and help with depleting enemy Resilience with her Medical Research potential.

★ Key Notes:
• The 5% resilience depletion from Medical Research does not increase further with higher levels.

Skill

1/1/1/1 (Not needed)

Coronis is only used for her Potential kit and none of her skills scale buffs or debuffs so there is no need to waste resources on her.

Potential

Priority

Skeleton Sculpture

When launching a horizontal sweep with Bone Chain (Support Skill), unleashes 3 Shadow Scythes, dealing 57.5% of ATK as Umbra Skill DMG and inflicting Umbra Mark: Gloom.
While casting Bone Chain (Support Skill), increases the Resilience Break Efficiency of the horizontal sweep and Shadow Scythes by 60%.

Skeleton Frenzy

When Coronis breaks the chains with Bone Chain (Support Skill), unleashes 3 Shadow Scythes to the opposite direction, dealing 57.5% of ATK as Umbra Skill DMG and inflicting Umbra Mark: Gloom.
While casting Bone Chain (Support Skill), increases the Resilience Break Efficiency of the horizontal sweep and Shadow Scythes by 60%.

6

Underground Healer 6

Increases Umbra Trekkers' ATK by 38%.

6

Tag of Fate 6

When Coronis deals DMG by breaking the chains during Bone Chain (Support Skill), increases the target's Umbra DMG Taken by 39% for 10s.

1

Medical Research 1

When Coronis deals DMG with Bone Chain (Support Skill), reduces the target's Resilience by 5%. This effect can only be triggered once every 12s.
Increases Coronis's ATK by 9%.

Emblem

Disc

Petals of Blooming Mirage

C1

Dream Factory of ☆Truth

C1

Wisteria Dream

C1

Witch's Swing

C1

Those with Ambition

C1

The Meow

C6

Phantom of the Banquet

C6

Rotation

This team is pretty straightforward and even auto friendly as there is no need for manual skill usage input.

General Rotation

1. Mistique or Coronis Supp. Skill
2. Otoha Supp. Skill + Cosette Main Skill

When to use Ultimate?

• Cosette (with Nether Blaze): Before using her skill.
• Otoha: Only when her skill is in cooldown.
• Mistique: Whenever available as long as her skill is not cancelled.
• Coronis: Preferably when the enemy has resilience bar active.