Pyro Catalyst

Klee

Fleeing Sunlight

TierS
RolesMain DPS
Release1.0

The Knights of Favonius' little explosives expert was reworked in Luna III (6.2) and is finally a real contender. Her Skill and Burst now hand out Explosive Sparks, her stamina-free Boom-Boom Strikes hit much harder, and as a Hexerei character she chains extra Boom-Boom Strikes into her Normal Attacks during her Burst. With a second Hexerei teammate like Durin or Fischl, she is a strong, fluid Pyro main DPS in Overload, Burning and Furina teams.

Klee

Hexerei main DPS

Weapons

Reliquary of Truth BiS
5★ · CRIT DMG
Best generalist: CRIT DMG, +8% CRIT Rate and +80 EM on Skill, great in reaction teams.
+8% CRIT Rate; Skills grant +80 EM and Lunar-Bloom DMG grants +24% CRIT DMG, both boosted by 50% when active together.
Lost Prayer to the Sacred Winds
5★ · CRIT Rate
CRIT Rate and up to +32% Elemental DMG; the movement speed helps with her slow animations.
+10% Movement SPD; gains +8% Elemental DMG every 4s in combat (max 4 stacks).
Cashflow Supervision
5★ · CRIT Rate
Best in Furina teams with low ER needs, where HP changes are constant.
+16% ATK; HP changes stack up to +48% Normal Attack DMG, +42% Charged Attack and Stellar-Conduct DMG, and +8% ATK SPD at 3 stacks.
Tome of the Eternal Flow
5★ · CRIT DMG
Best in Furina teams that need Energy: Charged Attack DMG and 8 Energy from HP changes.
+16% HP; HP changes stack up to +42% Charged Attack DMG and restore 8 Energy at 3 stacks (once every 12s).
The Widsith
4★ · CRIT DMG
Best 4-star in most teams, even if its random theme only lines up every other rotation.
On entering the field, gains a random theme for 10s: +60% ATK, +48% Elemental DMG or +240 Elemental Mastery (once every 30s).
Flowing Purity
4★ · ATK%
Craftable F2P choice, best in Burning teams or with a healer to clear its Bond of Life.
Using a Skill grants +8% Elemental DMG and a Bond of Life; clearing it adds up to +12% Elemental DMG for 15s.

Artifacts

A Day Carved From Rising Winds ×4
Best overall: up to +43% ATK, plus +20% CRIT Rate once her Witch's Homework is done.
Set effects
2pATK +18%.
4pNormal/Charged Attack, Skill or Burst hits grant +25% ATK for 6s, plus +20% CRIT Rate if the wearer has completed Witch's Homework.
Crimson Witch of Flames ×4
Good in Vaporize and Overload teams.
Set effects
2pPyro DMG Bonus +15%.
4pOverloaded, Burning and Burgeon DMG +40%, Vaporize and Melt DMG +15%; Skills boost the 2-piece bonus by 50% (max 3 stacks).
Marechaussee Hunter ×4
Alternative with Furina, whose HP drain keeps the CRIT Rate stacks up.
Set effects
2pNormal and Charged Attack DMG +15%.
4pWhen current HP increases or decreases, CRIT Rate +12% for 5s (max 3 stacks).
Night of the Sky's Unveiling ×4
Only in Lunar-Charged teams with Ineffa or Columbina.
Set effects
2pElemental Mastery +80.
4pWhen the party triggers Lunar Reactions while the wearer is on-field, CRIT Rate +15/30% (Nascent/Ascendant Gleam) for 4s, and +10% party Lunar Reaction DMG per different Gleaming Moon effect.

Main stats

Sands of Eon
ATK%
Goblet of Eonothem
Pyro DMG Bonus / ATK%
Circlet of Logos
CRIT Rate / CRIT DMG

Substat priority

1CRIT Rate 2CRIT DMG 3Energy Recharge 4ATK% 5Elemental Mastery

Stat targets

  • Energy Recharge 125–140% with one other Pyro unit (110–130% with a Favonius user), 140–160% as the only Pyro
  • CRIT Rate 50–60% on the stat screen with 4-piece A Day Carved From Rising Winds (it adds 20% in combat)
  • CRIT DMG 180%+
  • ATK% goblet only in heavily buffed teams

Talent priority

Normal Attack
Elemental Skill
Elemental Burst

Normal Attack is her main damage source, but all three talents matter for her damage ceiling. C6 lowers her own ER needs by about 20% and her teammates' by about half.

Teams

Recommended teams

Kloverload

Her strongest team: Durin and Fischl enable Hexerei and add off-field damage, Chevreuse shreds Pyro and Electro RES and buffs ATK.

Kleerina

Furina's DMG buff with Albedo as the second Hexerei unit and Xilonen healing and shredding Pyro RES.

Burning

Emilie keeps enemies Burning while Durin and Bennett buff Klee; pairs well with Flowing Purity.

Guide

How to play

How she works

  • Pounding Surprise: Normal Attacks and Jumpy Dumpty (Skill) have a 50% chance to grant an Explosive Spark, and casting her Skill or Sparks 'n' Splash (Burst) always grants one. She holds up to 3. A Charged Attack consumes a Spark to perform a Boom-Boom Strike: no Stamina cost and +50% DMG.
  • Sparkling Burst: CRIT Charged Attacks restore 2 Energy to the whole party.
  • Hexerei: Secret Rite (after her Witch's Homework, with a second Hexerei character such as Durin, Fischl, Sucrose or Albedo):
  • During Sparks 'n' Splash, her Normal Attack sequence does not reset, and her third Normal Attack consumes a Spark to add a Boom-Boom Strike on top of the hit.
  • Dealing Normal Attack, Skill and Burst DMG each grants a Boom Badge (20s). With 1/2/3 Badges, Boom-Boom Strikes deal 115%/130%/150% of their DMG.

Rotation

  1. Set up your supports (Fischl or Durin, Chevreuse or Bennett…).
  2. On Klee: N1, E cancelled into Q, then N3 and your second E. You now have all three Boom Badges.
  3. Spam N3 combos for the rest of the Burst: each third hit spends a Spark on a free Boom-Boom Strike.
  4. When you are down to 1 or 0 Sparks, finish combos with a Charged Attack instead of the third hit.

Stay on the field during Sparks 'n' Splash: it disappears if Klee swaps out (at C4, leaving triggers an explosion instead).

Strengths

  • Much smoother since her Luna III rework: free Sparks, no Stamina worries, no reset of her Normal Attack combo during Burst
  • High single-target and AoE Pyro damage
  • Fits Overload, Burning, Vaporize and Furina teams
  • Strong C1 and C2 (+60% ATK, 23% DEF shred)

Weaknesses

  • Needs another Hexerei unit and her Witch's Homework to reach her full potential
  • Still a fairly slow, stationary catalyst playstyle
  • Must stay on the field for her whole Burst

Notable dupes · Constellation

C1
Big upgrade

Extra sparks and +60% ATK for 12s after they trigger: a major damage increase.

C2
Solid upgrade

Skill hits cut enemy DEF by 23% for 10s, useful for the whole team.

C6
Big upgrade

Her best on-field constellation: Energy for the party, +50% Pyro DMG for Klee and more Boom-Boom Strikes under Hexerei.

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