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Sweltering Heat Maze Main Page

Sweltering Heat Maze (炎熱の迷宮) is the 2nd half of the Decisive Battle with Nidhogg (ナイドホグル決戦イベント), a time-limited Mission that takes place alongside Events. It includes a set of stages that involve a venture towards the heart of Nidhogg. Story-wise, this takes place after the battle with the Twilight Underlings - with Flower Knights going inside of Nidhogg to seal of its core.

It lasts one week and replaces the 1st half: Twilight Underlings.

As of 2023/04/24: Sweltering Heat Maze was made permanently available under Three Major Decisive Battles. Story Mission - Part 1, Chapter 45 must be completed in order to unlock these stages.

Maze[]

Sweltering Heat Maze Levels

Levels

The maze consists of 4 Basic Levels, each containing 4 Stages. At least 1 stage in a level must be cleared in order to access the next level. Stages are classified under 1 of 6 Difficulties, from easiest to hardest they are: Elementary, High, Top, Ultimate, EX, and Core. Higher levels include stages of higher difficulties, with 1 stage being marginally easier than the rest.

Once a stage from level 4 has been cleared, the 5th and final Core Level becomes accessible.

Level Japanese Name Engligh Name Type Difficulty Stages
1 黒龍脈 Black Dragon Vein Magic Elementary 4
2 闇腑 Dark Heart Pierce High / Top 4
3 炎管 Fire Gland Hit Top / Ultimate 4
4 心門 Ostium Slice Ultimate / EX 4
5 (Core) 神蟲核 God Pest's Core Neutral EX / Core 6
Sweltering Heat Maze BS Found

Burrow Found

When clearing stages, you will sometimes spawn a time-limited Strange Dark Burrow (奇種の暗腔), which contains several bonus stages. It can be found in the Limited Mission area of the game and is available for 30 minutes before expiring. Clearing one bonus stage will cause the Burrow to close, so you can only do one per spawn. Also, cleared bonus stages can be replayed the next time you discover a Burrow. They reward more Flower Medals per Stamina than regular stages, so they are the best source of the currency.

  • Stages in the core level cannot spawn Burrows.
  • You can only have one Burrow open at a time.

Skill Effectiveness[]

Sweltering Heat Maze Marked Units

Marked Units

Stages 2-4 will highlight the skill types that are most effective in that stage. You can view the units in your party and helper squad that have the correct skill type, as shown on the right. Organizing teams with these skills isn't essential, but it can be helpful if you are struggling.

Stage 2 of each level promotes single-target skills:

  • Single Target Eg: Cardamine Lyrata Deals 5.4x damage to 1 enemy.
  • Single Target & Absorb Eg: Red Ginger Deals 4.3x damage to 1 enemy and absorbs HP.
  • Affection-Based Single Target Eg: Flowering Peach Deals 5x~5.4x damage to 1 enemy based on one's current affection rating.
  • Affection-Based Single Target & Absorb Eg. Fire Lily Deals 2x~2.6x damage to 1 enemy based on one's current affection rating. Absorbs HP.

Stage 3 of each level promotes double-target skills and three-hit attack skills:

  • Double Target Eg: Cherry Deals 3.8x damage to 2 enemies.
  • 3-Hit Attack Eg: Sakura (Swimsuit) Attacks 3 times, dealing 1.8x damage to single targets.
  • 3-Hit Attack & All-Target Eg: Anemone Attacks 3 times, dealing 1.8x damage to single targets, then deals 0.5x damage to all targets.

Stage 4 of each level promotes all-target skills and skills that deal damage based on enemy numbers:

  • All Target Eg: Habranthus Deals 2.9x damage to all enemies.
  • Damage Based on Enemy Numbers Eg: Hyacinth Based on the number of remaining enemies, deals 4.7x damage to 1 enemy, 2.8x damage two enemies, or 2.2x damage to three enemies.

Maze Rewards[]

Flower medal

Flower Medal

Medals of a Thousand Blooming Flowers (千花繚乱の勲章), called Flower Medals, is a currency that was first added with this event and is used to be traded in the Wares for valuable items. Clearing stages/bonus stages reward Flower Medals and items like Bond Crystals. 3-medalling stages/bonus stages reward Flower Medals and Flower Stones as the Breakthrough Reward (突破報酬), but this can only be earned once.

Sweltering Heat Maze Multiplier

Level Multiplier

Every time you clear a stage for the first time, you'll get a multiplier that increases medals earned for each stage on that same level. Each clear adds +5%, up to a total of +20%. For example, if you have cleared 3 out of the 4 stages in level 1, you'll be earning 15% more medals on level 1 stages.

Medal Reward Multiplier
1 stage cleared 5% up
2 stages cleared 10% up
3 stages cleared 15% up
4 stages cleared 20% up

Core Level[]

The Core Level is an optional set of stages where you can attack the final boss Nidhogg (ナイドホグル). It includes 6 stages - each costs 0 stamina, can be repeatedly challenged, and offer no reward for clearing it multiple times. Clearing core stages cannot spawn bonus stages either. The only benefit is the Breakthrough Rewards, which can only be earned once per stage.

Strategy[]

Sweltering Heat Maze Core Beaten

Core Defeated

The boss is The Protector of Sweltering Heat and Twilight (炎熱ト宵闇ノ守護者), who protects the heart of Nidhogg 'Crimson God-Bug Core (紅蓮の神蟲核)' in the back. The heart cannot be targeted or dealt damage at all until the Protector is defeated. The Protector has no typing and has three forms which appear every time its HP bar is depleted. Each form has progressively more HP, attack power, and accuracy than the last. The final form will continue to get 10% attack power on each turn. This seems to reset each time the battle ends (your party loses).

Most bloomed 6* characters with 200% affection will survive 2~3 attacks. Debuffing skills are ineffective because of the protector's steadily increasing attack power. Consider saving your strongest flower knights for the last form to defeat it without taking too many turns.

Maze Details[]

Stage Difficulty 3-Medal
Reward
Stamina Medals
(+20% Multiplier)
Medals per
Stamina
1 Elementary x400 Medals
x1oo Flower Stone
5 x24 x4.8
2 Elementary x800 Medals
x1oo Flower Stone
10 x60 x6
3
4

Stage Difficulty 3-Medal
Reward
Stamina Medals
(+20% Multiplier)
Medals per
Stamina
1 High x500 Medals
x1oo Flower Stone
15 x72 x4.8
2 Top x1000 Medals
1oo Flower Stone
20 x144 x7.2
3
4

Stage Difficulty 3-Medal
Reward
Stamina Medals
(+20% Multiplier)
Medals per
Stamina
1 Top x1000 Medals
x2oo Flower Stones
25 x192 x7.68
2 Ultimate x2000 Medals
2oo Flower Stones
40 x324 x8.1
3
4

Stage Difficulty 3-Medal
Reward
Stamina Medals
(+20% Multiplier)
Medals per
Stamina
1 Ultimate x1500 Medals
x2oo Flower Stones
45 x432 x9.6
2 EX x3000 Medals
2oo Flower Stones
60 x600 x10
3
4

Stage Difficulty 3-Medal
Reward
Stamina Medals
(+20% Multiplier)
Medals per
Stamina
1 EX x3000 Medals 0 x0 x0
2 Core x12000 Medals 0 x0 x0
3
4
5
6

Stage Difficulty 3-Medal
Reward
Stamina Medals Medals per
Stamina
1 Elementary x2000 Medals 10 x60 x6.0
2 Intermediate x4000 Medals 20 x170 x8.5
3 High x10000 Medals 40 x420 x10.5
4 EX x12000 Medals 60 x900 x15
5
6
7

History[]

  1. Iteration 01: 2018/02/26 (The Thousand-Footed Nidhogg)
    • The core stage could only be cleared once. It would be locked afterwards.
  2. Iteration 02: 2018/05/07 (The Queen is Busy!)
    • The first stage at each difficulty was changed to be easier than others of the same difficulty level. It didn't have a related effective skill.
    • 2-target and multi-target skills were no longer categorized as different skill types.
    • The core difficulty got a 2nd, easier stage.
    • The core stage could be attempted as many times as you wanted.
  3. Iteration 03: 2019/07/17 (The Roaming Ghost Ship of the Bygone Days)
  4. Iteration 04: 2019/11/19 (Costumes on Stage)
  5. Iteration 05: 2019/02/25 (Turning the Tables! The Great Gamble on the Water)
  6. Iteration 06: 2019/06/03 (Happy Mushroom Stew)
  7. Iteration 07: 2019/10/07 (The Dazzling Princesses of Pure Flower)
  8. Iteration 08: 2020/03/23 (Tea Party in Wonderland)
  9. Iteration 09: 2020/10/19 (Candy Festival and Kind Song)
  10. Iteration 10: 2021/07/19 (Large-Scale Operation: Cœur Sweets)
  11. Iteration 11: 2022/06/20 (Doki Doki ★ Desert Island Vacation)
  12. Permanence: 2023/04/24
    • Sweltering Heat Maze was made permanently available.
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