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AI theory buildGame version 1.0.3350 talent points
Heidi

Katana · Final upgrade

Heidi

Overheat charged by sheathed dashes

Spend dashes while sheathed to build Overheat, then consume one stack per normal attack. Secure dash count and recovery, and increase the enhanced attacks' fire damage.

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 · Red-Clothed Cat · fruit skewer · wishing fountain · 50 talent points

Select the miracle “Chef” 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

When consuming Dash Count, gain 1 'Overheat' stack. (1 by default, gain 3 when using Sheath, up to 12) Consumes 1 stack to empower Normal Attack.

  1. BladeBlade
  2. HelbanusHelbanus
  3. HeidiHeidi

01 · SETUP

Starting setup

Availability depends on your unlocks

Recommended character

Red-Clothed Cat

Use 15% fire damage amplification and the starting Fire Bolt. Physical damage decreases by 20%, so place more emphasis on fire attacks.

Fruit skewer 6 total

  • Orange(Ember)×3
  • Wind Spirit Fruit(Wind Song)×2
  • Tri-Tangerine(Elemental)×1

Wishing fountain Fountain usage 8 of 9

  • Golden CloakCapacity 4
  • Phoenix WingCapacity 4
Why this choice
Use Golden Cloak for dash charges and Phoenix Wing for fire damage and Burn. Use the starting Fire Bolt and Phoenix Wing to reach the tier-2 Ember bond. Fountain usage is 8/9, and the items must be unlocked to bring them in.

Talents 50 points

  • Willpower20
  • Wrath20
  • Ingenuity10
Why this choice
Willpower 20 provides 9 fountain capacity. Wrath 20 increases critical chance, critical damage, damage against bosses, and armor penetration. Use Ingenuity 10's extra inventory space and item, miracle, and weapon choices to gather needed equipment.

Recommended miracle

Chef

  • Fire damage +5
  • Burn damage +25%
  • Gain 1 Ember artifact (selected from unlocked, eligible candidates)
Why this choice
Add 5 fire damage to strengthen enhanced normal attacks and 25% Burn damage to improve the Burn applied alongside them.

Stat priorities

  1. Fire damage
  2. Dash charges and dash recovery
  3. Normal attack damage
  4. Fire critical damage

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

Ember

6Combo target
  • Dragoncense

    Increase fire damage.

  • Flaming Eye Patch

    Increase fire attack critical damage.

  • Blacksmith's Tongs

    Increase weapon damage against burning targets.

Bond choices and conditions
Strengthen the fire damage and additional Burn of Overheat normal attacks.
Support

Wind Song

4Combo target
  • Sword Training Manual

    Improve attack speed before evolution or outside Overheat. Overheat-enhanced attacks have fixed attack speed, so prioritize dash charge and recovery equipment.

  • Golden Cloak

    Increase dash charges to build more Overheat. Use the accompanying attack speed increase outside enhanced attacks.

  • Compression Bandage

    Improve dash recovery to prepare for the next engagement and escape.

Bond choices and conditions
Prioritize dash capacity and recovery over attack speed to maintain the supply of Overheat.
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 fire as the highest element to strengthen enhanced normal attacks.

03 · HOW TO PLAY

Playing this build

1Early preparation

At the Blade stage, use dashes for survival and Fire Bolt for support. Dashes alone do not grant attack stacks yet.

2Upgrades and transition

Use Helbanus's extra fire damage. After Heidi, shift to spending dashes while sheathed to gather more Overheat.

3Combat loop

  1. While sheathed, use necessary dashes to move and build Overheat.
  2. From a safe distance, consume stacks one at a time with normal attacks.
  3. Avoid wasting stacks beyond the maximum of 12, and save a dash for retreat.

Boss fights

Pass through the boss's pattern with sheathed dashes, then unleash Overheat normal attacks. Do not spend all your dashes just to charge up.

Without the core items

Without Golden Cloak, use Compression Bandage and dash recovery talents to repeat shorter stack cycles. Without stacks, hold out with basic attacks and Fire Bolt.

04 · REVIEW NOTES

Cautions and scope of verification

Conditions to watch

  • Overheat-enhanced normal attacks are based on fire damage and have attack speed fixed at 300%. For this phase, prioritize fire damage and dash recovery over further attack speed investment.
  • You gain Overheat when you spend a dash charge. You gain 3 stacks while sheathed and 1 while drawn, so check your stance when charging.

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 408; parent 406

  • 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

  • Explains that Overheat normal attacks use fire damage and have attack speed fixed at 300%.

    Localization/ko-KR.json / EffectHUD_KatanaDashStack_FlavorText

BUILD FEEDBACK

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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.

Heidi · Overheat charged by sheathed dashes | Sephiria