Sephiria Record Nexus
AI buildsDownload mod
AI theory buildGame version 1.0.3350 talent points
Lightning Flash

Katana · Final upgrade

Lightning Flash

Issen powered by Electric Charge from Electrocution

Build Electric Charge when Electrocution deals damage, then spend it to turn Heavy Slash into Issen. Prioritize lightning damage and ways to apply Electrocution.

AI analysis without using player records or existing builds. Optimal performance in actual play and item availability are not guaranteed.

View starting setupView player records for this weaponOther recommended builds

Use this setup in the game

Copy the code and paste it into the game's preset settings.

Starting weapon Blade · Frog · fruit skewer · wishing fountain · 50 talent points

Select the miracle “Electromancer” manually in the game. Miracles are not included in the game's preset code. Complete the final weapon evolution and collect the bond items during the run.

After applying, check character and item unlocks and your available talent points.

Weapon effect

Gain 1 stack of 'Electric Charge' when dealing damage with Electrocution. (Max 10) / Consume 2 stacks of 'Electric Charge' to perform Special Attack: Issen upon Special Attack: Heavy Slash.

  1. BladeBlade
  2. Thunder Sword 'Bronte'Thunder Sword 'Bronte'
  3. Lightning FlashLightning Flash

01 · SETUP

Starting setup

Availability depends on your unlocks

Recommended character

Frog

Use 15% lightning damage amplification and the starting Lightning Arrow. Physical damage decreases by 20%, putting melee physical attacks at a disadvantage before evolution.

Fruit skewer 6 total

  • Pineapple(Magitech)×3
  • Tri-Tangerine(Elemental)×2
  • Watermelon(Lake)×1

Wishing fountain Fountain usage 7 of 9

  • Thunder's EarringCapacity 4
  • Charm of LightningCapacity 3
Why this choice
Use Thunder's Earring for periodic Electrocution and Charm of Lightning for lightning damage. The tier-2 Magitech bond also activates Shock Touch. This uses 7/9 Wishing Fountain capacity; unlock the items before bringing them in.

Talents 50 points

  • Willpower20
  • Wrath20
  • Swiftness10
Why this choice
Willpower 20 provides 9 fountain capacity. Wrath 20 increases critical chance, critical damage, damage against bosses, and armor penetration. Swiftness 10 improves attack speed, dash recovery, and final weapon damage.

Recommended miracle

Electromancer

  • Lightning damage +7
  • Electrocution damage +18%
  • Gain 1 Magitech artifact (selected from unlocked, eligible candidates)
Why this choice
Gain 7 lightning damage and 18% Electrocution damage to strengthen lightning attacks and the Electrocution damage that builds charge.

Stat priorities

  1. Lightning damage
  2. Electrocution application and activation
  3. Maximum Electrocution stacks
  4. Special attack damage and MP sustain

02 · SYNERGY

Target bonds and core items

Prioritize the items below when available. Reaching the target combo requires additional items of the same category and their placement; leveling an item alone does not increase the combo count.

Primary

Magitech

10Combo target
  • Thunder's Earring

    Secure periodic lightning attacks and Electrocution application.

  • Zap Bug

    Raise the item level to increase the maximum Electrocution stacks.

  • Thunderstorm Tracking Compass

    Secure Enhanced Electrocution and lightning damage.

Bond choices and conditions
Repeatedly inflict Electrocution and shorten its trigger time to create opportunities to generate Electric Charge.
Support

Elemental

4Combo target
  • Magic Carrot

    Increase your highest elemental damage and movement speed.

  • Sharp Flint

    Increase your highest elemental damage and critical chance.

  • Standards of Magic

    Increase your highest elemental damage and strengthen supporting spells.

Bond choices and conditions
Keep lightning as the highest element to strengthen lightning-based attacks.
Support

Lake

3Combo target
  • Heart-Shaped Carrot

    Increase both maximum MP and maximum HP.

  • Endoditte’s Paperweight

    Increase maximum MP and MP regeneration to secure MP for attacks.

  • Star Aquamarine

    Increase the MP cap with a final MP bonus.

Bond choices and conditions
Maintain MP for the Heavy Slashes used for Issen and for supporting spells.

03 · HOW TO PLAY

Playing this build

1Early preparation

Prepare Electrocution through Frog's lightning magic and fountain items. Before evolution, compensate for reduced physical damage with lightning magic and Electrocution.

2Upgrades and transition

Thunder Sword 'Bronte' makes weapon attacks lightning-based. After Lightning Flash, gather Electric Charge through Electrocution damage and spend it on Heavy Slash.

3Combat loop

  1. Apply Electrocution with lightning magic and Thunder's Earring.
  2. Check whether Electrocution damage has generated Electric Charge.
  3. With at least 2 Electric Charge stacks, use Heavy Slash during an enemy opening to trigger Issen.

Boss fights

Maintain Electrocution while evading patterns, and use Issen during brief counterattack opportunities. Avoid wasting Electric Charge beyond its maximum of 10.

Without the core items

Without Thunder's Earring, obtain Electrocution through Electro Chakram or Shock Touch from the tier 2 Magitech bond. Without Electric Charge, use ordinary Heavy Slash.

04 · REVIEW NOTES

Cautions and scope of verification

Conditions to watch

  • Electric Charge builds when Electrocution deals damage, not when it is first applied.
  • One Issen requires 2 Electric Charge stacks. Even after landing a lightning attack, you may lack Electric Charge if Electrocution damage has not occurred yet.

Needs further verification

No specific unresolved issues are listed. This does not mean performance has been verified in actual play.

View evidence and sources

Based on TEAM HORAY, Sephiria Fan Kit 2.4, and game 1.0.33 data. Reviewed 2026-09-19.

Effects and trigger conditions were checked against game data. Character and item combinations and play patterns are AI suggestions based on that data. Player records, community builds, and rankings were not used in the analysis.

  • Describes the final weapon's unique effect and the effects gained during intermediate evolution.

    source/weapons.json / weapon 405; parent 404

  • Describes recommended item effects and categories, and the effects of the target bond tiers.

    source/items.json; source/ComboEffects_ko-KR.txt

  • Describes character, talent, and miracle effects, and fountain eligibility requirements.

    source/characters-talents.json; source/miracles.json; source/fountain-eligibility.json

  • Lightning debuff damage increases stored charge, with repeated charge gains in the same frame limited.

    WeaponSimple_Katana.OnAttackUnitBeforeOperation

BUILD FEEDBACK

Feedback on this build

Share your experience or alternative combinations. Feedback is checked against game effects and rules to help improve AI recommended builds.

Loading comments.

AI build guidesView player records for this weapon

Game information and images: TEAM HORAY, Sephiria Fan Kit, and game data. Build choices and play suggestions are unofficial AI analysis.

Lightning Flash · Issen powered by Electric Charge from Electrocution | Sephiria