Seele is a Quantum Hunt character and a strong single-target DPS with high Skill and Ultimate damage. When she defeats an enemy, she enters the Amplification state, immediately taking an extra turn and gaining an ATK% buff. However, if she defeats another enemy during that extra turn, the effect won’t trigger again.
Seele is also Skill Point-hungry, as most of her damage relies on frequent Skill use. She performs best in teams that can generate Skill Points efficiently to sustain her playstyle.
Best Cavern Relics
(2) Increases Quantum DMG by 10%.
(4) When the wearer deals DMG to the target enemy, ignores 10% DEF. If the target enemy has Quantum Weakness, the wearer additionally ignores 10% DEF.
This set is great for Seele as it lets her ignore a portion of the enemy’s DEF. If the target has Quantum Weakness, the effect is doubled, significantly boosting her damage.
(2) Increases CRIT Rate by 8%.
(4) Increases DMG dealt by Skill and Ultimate by 20%. After using Ultimate, additionally increases the DMG dealt by the next Skill by 25%.
This set primarily boosts Seele’s Skill and Ultimate damage, and grants bonus damage to her next Skill after using her Ultimate.
Best Planar Ornaments
(2) Increases the wearer's CRIT Rate by 8%. When the wearer's current CRIT Rate reaches 70% or higher, the wearer's Basic ATK and Skill DMG increase by 20%.
This set is great for boosting her Skill, which makes up most of her damage. The Basic ATK bonus is also helpful, since Seele can choose to use a Basic Attack during her extra turn from Resurgence.
(2) Increases the wearer's ATK by 12%. When the wearer's SPD is equal to or higher than 135/160, the wearer deals 12%/18% more DMG.
This set works especially well for Seele if she reaches 160 SPD. Hitting that threshold while using the In the Night Light Cone gives her all the damage boosts she needs.
(2) Increases the wearer's ATK by 12%. When the wearer's SPD reaches 120 or higher, the wearer's ATK increases by an extra 12%.
This set is a solid general option for boosting Seele’s overall ATK, with SPD requirements that are easy for her to meet.
Best Stats

Body
CRIT Rate / CRIT DMG

Boots
SPD

Sphere
Quantum DMG Boost

Rope
ATK%
Substats
CRIT Rate / CRIT DMG / SPD / ATK%
info
For Seele, focus on Crit Rate and Crit DMG first to maximize her damage. Next, prioritize ATK% and SPD, as higher SPD lets her act more often and trigger her buffs. Finally, use a Quantum DMG orb to gain a multiplicative damage increase.
Best Light Cones
SourceStellar Convergence, Light Cone Event Warp
Flowers and Butterflies
Increases the wearer's CRIT Rate by 18~30%. While the wearer is in battle, for every 10 SPD that exceeds 100, increases DMG dealt by Basic ATK and Skill by 6~10%. At the same time, increases the CRIT DMG of Ultimate by 12~20%. This effect can stack up to 6 time(s).This is Seele’s signature Light Cone and remains her best choice. She needs to reach 160 Speed, either through solid Speed substats or Harmony characters that provide Speed boosts.
Chase
Increases the wearer's CRIT rate by 8~16%, and increases their CRIT rate against enemies with HP less than or equal to 50% by an extra 8~16%. When the wearer defeats an enemy, their ATK is increased by 20~40% for 2 turn(s).This Light Cone boosts Crit Rate against enemies below 50% HP and increases ATK during Seele’s Amplification state, enhancing her damage on the extra turn.
SourceStellar Warp, Light Cone Event Warp, Starlight Exchange, Stellar Convergence
Sweet Dreams
Increases the wearer's CRIT DMG by 30~50%. When the wearer's Basic ATK or Skill DMG does not result in a CRIT Hit, increases their CRIT Rate by 36~60%, lasting for 1 turn(s). This effect can only trigger once every 3 turn(s).Provides unconditional Crit DMG plus a conditional Crit Rate buff that's granted for 1 turn whenever your Basic ATK or Skill does not Crit.
SourceStellar Warp, Departure Warp, Character Event Warp, Light Cone Event Warp
Answers of Their Own
For each time the wearer hits the same target, DMG dealt increases by 8~16%, stacking up to 5 time(s). This effect will be dispelled when the wearer changes targets.Swordplay is effective mainly in single-target fights like boss battles, as its buff resets if Seele switches targets. Forced aggro can also disrupt it by making her lose focus on the same enemy.
SourceStellar Warp, Departure Warp, Character Event Warp, Light Cone Event Warp
Record
Increases the wearer's ATK by 16~32%. If there are 2 or fewer enemies on the field, increases wearer's CRIT Rate by 12~24%.Seele benefits from this Light Cone’s Crit Rate boost only when facing one or two enemies at a time.
SourceOperation Briefing, Echo of War, Memo-Keeping Light Casket, Light Cone Manifest
Stave Off the Lingering Cold
After entering battle, increases the wearer's SPD by 8~12% and DMG by 12~24%. When the wearer takes DMG, this effect will disappear. This effect will resume after the end of the wearer's next turn.Seele must avoid taking damage to keep this stat boost, as the buff disappears immediately if she is hit. It’s also less effective against DoTs, which remove the buff automatically.