Theorylytics

Lucia vs Lucy

Lucia vs Lucy — two Support agents competing for the same roster slot.

TL;DR — Quick Pick

Pick Lucia if…

  • You need a Ether Support agent and Lucia's kit matches your account gap.
  • You prefer Support gameplay over Lucy's Support identity.
  • Lucia is a transformative Support unit whose ability to scale off Max HP while providing massive damage buffs and team sustainability makes her essential for top-tier Ether compositions.

Pick Lucy if…

  • You need a Fire Support agent and Lucy's kit matches your account gap.
  • You prefer Support gameplay over Lucia's Support identity.
  • Lucy is a premier support unit who provides significant team-wide ATK buffs through her guard boars.
Verdict

Lucia and Lucy are both Support investments that answer different account needs. Lucia (Ether, Support) shines when Lucia is a transformative Support unit whose ability to scale off Max HP while providing massive damage buffs and team sustainability makes her essential for top-tier Ether compositions. Lucy (Fire, Support) is the better commit when Lucy is a premier support unit who provides significant team-wide ATK buffs through her guard boars. Compare signature builds, team requirements, and your existing supports before pulling either.

At a Glance

Lucia
Stat
Lucy
Ether
Attribute
Fire
Support
Specialty
Support
S-RankWinner
Rank
A-Rank
Support
Primary role
Support
Buffs / Utility
Damage type
Buffs / Utility
CRIT Rate
Scaling focus
ATK% (top priority until ability cap)
Support + Ether
Playstyle clarity
Support + Fire
Strong
Self-sustain
Strong
Focused
Team flexibility
ModerateWinner
Dialyn / Ju Fufu
Best support shell
Zhao
Kaboom the Cannon(S5) — A-rank · Accessible
F2P W-Engine path
Slice of Time — A-rank · AccessibleWinner
Excellent
M0 viability
Excellent

Strengths & Weaknesses

Lucia

Strengths
  • Provides massive Sheer Force increases based on her initial Max HP
  • Extends duration of powerful team-wide buffs like Ether Veil via active combat
  • Grants team-wide survivability through Max HP percentage increases
Weaknesses
  • Requires careful management of Dream Points to maintain the Dream state
  • Aftershock mechanics have a fixed internal cooldown
  • Highly dependent on reaching specific Max HP thresholds for maximum output

Lucy

Strengths
  • Provides significant flat and percentage ATK buffs to the team.
  • Guard boars inherit stats for meaningful off-field damage contribution.
  • Easy activation of Cheer On! status via EX Special.
Weaknesses
  • Buff effectiveness is capped, limiting hyper-investment returns.
  • Relies heavily on energy regeneration to maintain buff uptime.
  • Requires specific team compositions to maximize Additional Ability passives.

Best Builds (Signature)

Lucia

W-Engine

Dreamlit Hearth(S1)

Disk Set

Moonlight Lullaby(4-PC)

Disk 4

HP%

Disk 5

HP%

Disk 6

HP%

Substats

CRIT Rate >= CRIT DMG = ATK%

Lucy

W-Engine

Kaboom the Cannon

Disk Set

Moonlight Lullaby

Disk 4

ATK% > CRIT Rate%

Disk 5

ATK%

Disk 6

Energy Regen = ATK%

Substats

ATK% (top priority until ability cap) = CRIT RATE = CRIT DMG > PEN = ATK

Who Should You Pull?

Lucia
Pull Lucia if…
  • You need a Ether Support agent and Lucia's kit matches your account gap.
  • You prefer Support gameplay over Lucy's Support identity.
  • Lucia is a transformative Support unit whose ability to scale off Max HP while providing massive damage buffs and team sustainability makes her essential for top-tier Ether compositions.
  • Her unique Dream state mechanics allow for consistent uptime on critical combat buffs, ensuring your team remains dominant in extended encounters.
  • Lucia is a stronger general pull priority (YES) for your roster.
Lucia Full Guide
Lucy
Pull Lucy if…
  • You need a Fire Support agent and Lucy's kit matches your account gap.
  • You prefer Support gameplay over Lucia's Support identity.
  • Lucy is a premier support unit who provides significant team-wide ATK buffs through her guard boars.
  • Her ability to maintain high uptime on offensive support makes her an essential asset for any Fire or faction-synergized composition.
  • Lucy is a stronger general pull priority (YES) for your roster.
Lucy Full Guide