Theorylytics

Billy vs Cissia

Billy vs Cissia — two Attack agents competing for the same roster slot.

TL;DR — Quick Pick

Pick Billy if…

  • You need a Physical Attack agent and Billy's kit matches your account gap.
  • You prefer DPS gameplay over Cissia's DPS identity.
  • Billy is a solid, accessible Physical attacker who excels at mid-to-long-range sustained damage.

Pick Cissia if…

  • You need a Electric Attack agent and Cissia's kit matches your account gap.
  • You prefer DPS gameplay over Billy's DPS identity.
  • Cissia is a top-tier Electric Attack powerhouse with unique mechanics that enable massive DEF ignore for the entire squad.
Verdict

Billy and Cissia are both Attack investments that answer different account needs. Billy (Physical, DPS) shines when Billy is a solid, accessible Physical attacker who excels at mid-to-long-range sustained damage. Cissia (Electric, DPS) is the better commit when Cissia is a top-tier Electric Attack powerhouse with unique mechanics that enable massive DEF ignore for the entire squad. Compare signature builds, team requirements, and your existing supports before pulling either.

At a Glance

Billy
Stat
Cissia
Physical
Attribute
Electric
Attack
Specialty
Attack
A-Rank
Rank
S-RankWinner
DPS
Primary role
DPS
Direct Attack
Damage type
Direct Attack
CRIT Rate
Scaling focus
CRIT Rate
Physical + Ranged DPS
Playstyle clarity
Electric + AttackWinner
Strong
Self-sustain
Strong
ModerateWinner
Team flexibility
Focused
Dialyn / Sunna / Anby
Best support shell
Astra Yao / Trigger
Steel Cushion(S1) — S-rank · AccessibleWinner
F2P W-Engine path
Drill Rig - Red Axis — A-rank · Accessible
Good
M0 viability
ExcellentWinner

Strengths & Weaknesses

Billy

Strengths
  • Safe mid-to-long-range attack distance
  • High AoE damage potential with piercing shots
  • Increased damage output while in Crouching Shot
Weaknesses
  • Stationary playstyle leaves him vulnerable to knockback
  • Core passive damage buff lost if repositioning incorrectly
  • Requires proper team synergy to maximize Ultimate potential

Cissia

Strengths
  • High baseline DEF ignore for the whole team
  • Multiple invulnerability frames during core animations
  • Excellent synergy with Stun units for Venom gain
Weaknesses
  • Performance relies heavily on consistent energy consumption
  • Requires proper rotation planning to keep Venom uptime
  • Complex kit requiring attention to multiple stacks

Best Builds (Signature)

Billy

W-Engine

The Brimstone(S5)

Disk Set

Woodpecker Electro(4-PC)

Disk 4

CRIT Rate%

Disk 5

Physical DMG%

Disk 6

ATK%

Substats

CRIT Rate >= CRIT DMG = ATK%

Cissia

W-Engine

Serpentine Seeker

Disk Set

Astral Voice

Disk 4

CRIT Rate%

Disk 5

Electric DMG%

Disk 6

ATK%

Substats

CRIT Rate >= CRIT DMG = ATK%

Who Should You Pull?

Billy
Pull Billy if…
  • You need a Physical Attack agent and Billy's kit matches your account gap.
  • You prefer DPS gameplay over Cissia's DPS identity.
  • Billy is a solid, accessible Physical attacker who excels at mid-to-long-range sustained damage.
  • He is a great investment for new players needing a reliable main DPS before pulling for high-tier limited units.
  • Safe mid-to-long-range attack distance.
Billy Full Guide
Cissia
Pull Cissia if…
  • You need a Electric Attack agent and Cissia's kit matches your account gap.
  • You prefer DPS gameplay over Billy's DPS identity.
  • Cissia is a top-tier Electric Attack powerhouse with unique mechanics that enable massive DEF ignore for the entire squad.
  • She offers incredible flexibility in team compositions and provides significant utility alongside high personal damage output.
  • Cissia is a stronger general pull priority (YES) for your roster.
Cissia Full Guide