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AI theory buildGame version 1.0.3350 talent points
Lightning Greatsword "E3G"

Greatsword · Final upgrade

Lightning Greatsword "E3G"

Build Storm Clouds with attacks, spend them with Whirlwind

Gain 5 Storm Clouds every 5 attacks. Whirlwind grants a 10-second buff that increases Storm Cloud consumption speed by 100%, stacking up to 5 times. Build enough reserves before using Whirlwind to accelerate triggers.

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 Steel Greatsword · Frog · fruit skewer · wishing fountain · 50 talent points

Select the miracle “Meteorologist” 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

Every 5 attacks, gain 5 Storm Cloud stacks. When using Special Attack: Whirlwind, gain a buff that increases Consumption Speed of Storm Cloud by 100% for 10 seconds. (Max 5 stacks)

  1. Steel GreatswordSteel Greatsword
  2. Lightning Greatsword "E2G"Lightning Greatsword "E2G"
  3. Lightning Greatsword "E3G"Lightning Greatsword "E3G"

01 · SETUP

Starting setup

Availability depends on your unlocks

Recommended character

Frog

Use 15% lightning damage amplification and the starting Lightning Arrow spellbook (skill used: Lightning Bolt). Physical damage amplification decreases by 20%, so do not rely solely on physical hits. The penalty to the physical damage portion remains after evolution.

Fruit skewer 6 total

  • Plum(Storm Cloud)×3
  • Wind Spirit Fruit(Wind Song)×2
  • Pineapple(Magitech)×1

Wishing fountain Fountain usage 9 of 9

  • Lightning RodCapacity 6
  • Stone FlowerCapacity 3
Why this choice
Prepare Lightning Rod and Stone Flower at the Wishing Fountain. This uses 9/9 capacity, and the items must be unlocked first. Then collect items in the same categories to complete the target combos.

Talents 50 points

  • Willpower20
  • Swiftness20
  • Wrath10
Why this choice
Willpower 20 adds 15 maximum HP and 25 maximum MP and provides 9 Wishing Fountain capacity. Swiftness 20 adds 20% attack speed, 8 evasion, and 1 dash charge. It also increases dash recovery speed and final weapon damage. At level 20, dash invincibility lasts 0.1 seconds longer, with an additional final weapon damage bonus. Wrath 10 adds 10% critical chance and 20% critical damage. Damage dealt to bosses and minibosses also increases by 10%. Uses 50 points in total.

Recommended miracle

Meteorologist

  • Storm Cloud additional damage +25%
  • Storm Cloud capacity +10
  • Lightning damage +4
  • Gain 1 Storm Cloud artifact (selected from unlocked, eligible candidates)
Why this choice
Add 25% Storm Cloud additional damage, 10 capacity, and 4 lightning damage to secure damage and resource reserves. Also gain 1 Storm Cloud artifact. The granted item is selected from candidates that meet the unlock and eligibility requirements, so a particular core item is not guaranteed.

Stat priorities

  1. Storm Cloud recovery speed, capacity, and additional damage
  2. Attack speed
  3. Lightning damage
  4. Core artifact levels and defensive stats

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

Storm Cloud

10Combo target
  • Lightning Rod

    Increase Storm Cloud capacity and recovery speed in combat. Also increase lightning damage to support Storm Cloud attacks.

  • Lightning Stone

    Increase Storm Cloud's additional damage. Strengthen offense after securing Storm Cloud capacity and recovery.

  • Sapote Fruit

    Increase Storm Cloud capacity and MP regeneration. A separate recovery method is needed to replenish Storm Clouds faster.

Bond choices and conditions
Increase Storm Cloud capacity and recovery speed, and strengthen the extra damage. You do not need every recommended item. Reach the target combo with other items in the same category and placement bonuses. Treat 10 combo as a late-game goal and use the intermediate tiers along the way. When using extra slots, also consider defensive equipment and slab placement. Leveling ordinary artifacts alone does not increase the combo count.
Support

Wind Song

6Combo target
  • Sword Training Manual

    Increase attack speed to chain weapon attacks more quickly.

  • Wanderer's Necklace

    Increase attack speed and your highest elemental damage. Support your main element while repeating attacks.

  • Sheet Music 'The Typhoon'

    Gain attack speed and additional lightning damage on weapon attacks, but consume Storm Clouds faster. Use it when Storm Cloud recovery is sufficient.

Bond choices and conditions
Increase attack speed to perform the attacks needed to gain Storm Clouds more quickly. Use the score's accelerated consumption in line with your recovery rate. You do not need every recommended item. Reach the target combo with other items in the same category and placement bonuses.
Support

Magitech

4Combo target
  • Charm of Lightning

    Increase lightning damage to strengthen lightning attacks and related artifacts.

  • Thunder's Earring

    Periodically strike nearby enemies with lightning and apply Electrocution. Also increase lightning damage to support attacks.

Bond choices and conditions
Support Storm Cloud-focused attacks with lightning damage and Electrocution. You do not need every recommended item. Reach the target combo with other items in the same category and placement bonuses.

03 · HOW TO PLAY

Playing this build

1Early preparation

While using Steel Greatsword, combine the starting Lightning Arrow grimoire (which casts Lightning Bolt) with weapon attacks. Physical damage amplification is reduced by 20%, so use magic to supplement your damage. Charge Whirlwind from a safe position before enemies close in. Use the items prepared at the Wishing Fountain; the final weapon's unique effect becomes available after evolution.

2Upgrades and transition

Steel Greatsword → Lightning Greatsword "E2G" → Lightning Greatsword "E3G". Intermediate weapon effect: When performing a Weapon Attack, deal additional damage to the target equal to 30% of Lightning Damage. After the final evolution: Gain 5 Storm Clouds every 5 attacks. Whirlwind grants a 10-second buff that increases Storm Cloud consumption speed by 100%, stacking up to 5 times. Build enough reserves before using Whirlwind to accelerate triggers.

3Combat loop

  1. Keep normal attacks going to refill Storm Clouds.
  2. With enough reserves, use Whirlwind to increase consumption speed.
  3. When reserves are low, prioritize supply through normal attacks over more consumption buffs.

Boss fights

Do not over-refresh the consumption buff just before boss invulnerability or movement phases. Save resources for attackable windows.

Without the core items

Without Lightning Rod, start with Sapote Fruit and Stone Flower. Add consumption-speed items after supply becomes stable.

04 · REVIEW NOTES

Cautions and scope of verification

Conditions to watch

  • Do not assume 5 attacks means the same as 5 hits or 5 projectiles.
  • Increasing only consumption speed may empty your Storm Clouds first.

Needs further verification

  • Further verification is needed to determine whether attack counts refer to inputs, successful hits, or individual strikes.
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.

  • Every 5 attacks, gain 5 Storm Cloud stacks. When using Special Attack: Whirlwind, gain a buff that increases Consumption Speed of Storm Cloud by 100% for 10 seconds. (Max 5 stacks)

    weapon 1109 / source/weapons.json

  • This source verifies character, talent, and miracle effects, along with Wishing Fountain item eligibility and capacity.

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

  • This source verifies core item categories and activation conditions, as well as the effects at each combo tier.

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

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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 Greatsword "E3G" · Build Storm Clouds with attacks, spend them with Whirlwind | Sephiria