Merkmal Island
(Redirected from Idelva Kingdom, Merkmal Island)
An island with a crooked fortress, is scarred by the struggle of its past.
Merkmal Island is the location for chapters 80-83 of the main quest.
< Silverwind Stretch, North Vast | Merkmal Island | Groz Island >
Lore
- An island located on the edge of Nalhegrande Skydom, landmarked by the giant fortress left by the Astrals. Although it falls under the rule of Idelva Kingdom, it's mostly untouched as the island is without a significant industry or residential population. But since the settlement by the outlaws in recent years, it's become fairly independent, leading to uneasiness regarding their new role in the sky.
Sturren Fort
- A majestic fortress overlooking the edge of the skydom. It is said that the Astrals lived in prosperity, but its pre-war purpose and functionality are not fully known. Researchers and top military brass from different countries have been conducting ongoing investigations.
Fortress Overlook
- A large overlook at the top of Sturren Fort where you can see the whole of Merkmal Island. It's speculated that after being built, it was used to watch over the Grim Basin and Silver Wall. Currently the island outlaws use it to keep guard over the island.
Fortress Traps
- Although it's known that Sturren Fort is laid out with snares both large and small, much of the documents related to the fortress have been lost. Only a small portion of the traps and their triggers have been discovered, and even those have been kept secret.
Antiquated Townscape
- A row of old houses around Sturren Fort built around the same time as the fortress. With the fortress takeover by the outlaws, the island residents moved away from the area and it soon became a roost for the outlaws.
Locations
Zeman Plains
- Fields that roll stoically over the island. The unknown brings forth hope and despair in equal measure.
Main Quests
Chapter 80: An Unfamiliar Sky - Part 3 |
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Cost to Host: 23 AP | Unlock: Clear Chapter 80 Story: An Unfamiliar Sky - Episode 2 |
Location: Chapter 80: Merkmal Island - Zeman Plains |
Stage strategy | |||||
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Fixed party of Main Character; cannot use summons. MC's class, skills, and element are based on your currently-selected team. | |||||
Wave | Name | Lvl | HP | Charge | Mode |
Boss | ![]() |
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35,000 | ◇◇◇ | No |
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48,000 | ◇◇◇ | No |
Rewards | ||
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First clear: |
Wooden | Silver | Gold |
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Chapter 80: An Unfamiliar Sky - Part 4 |
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Cost to Host: 23 AP | Unlock: Clear Chapter 80 Story: An Unfamiliar Sky - Episode 3 |
Location: Chapter 80: Merkmal Island - Zeman Plains | Start QuestNetwork Errors will appear if the hosting conditions are not met. (AP, Host Materials, Daily Limit) |
Stage strategy | |||||
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Fixed party of Main Character and ![]() |
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Wave | Name | Lvl | HP | Charge | Mode |
Wave 1 | ![]() |
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65,000 | ◇◇ | No |
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100,000 | ◇◇ | No | |
Wave 2 | ![]() |
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45,000 | ◇ | No |
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45,000 | ◇ | No | |
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110,000 | ◇ | No |
Rewards | ||
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First clear: ![]() |
Wooden | Silver | Gold |
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Free Quests
Stocking Up for Winter |
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Cost to Host: 23 AP | Unlock: Clear Chapter 83 Story: Old Battles, New Paths |
Location: Chapter 80: Merkmal Island - Zeman Plains | Start QuestNetwork Errors will appear if the hosting conditions are not met. (AP, Host Materials, Daily Limit) |
Stage strategy | |||||
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Drops 0-1 ![]() ![]() ![]() |
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Wave | Name | Lvl | HP | Charge | Mode |
Boss | ![]() |
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310,000 | ◇ | Yes |
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350,000 | ◇◇◇◇◇ | Yes | |
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310,000 | ◇ | Yes |
Rewards | ||
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First clear: ![]() |
Wooden | Silver | Gold |
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Sturren Fort
- A fortress that survived the War. The people long for a king with the resolve to protect them.
Main Quests
Free Quests
Indignant Conflagration |
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Cost to Host: 40 AP | Unlock: Clear Chapter 81 Story: King of the Outlaws and Michael's Test - Extreme |
Location: Chapter 81: Merkmal Island - Sturren Fort | Start QuestNetwork Errors will appear if the hosting conditions are not met. (AP, Host Materials, Daily Limit) |
Stage strategy | |||||
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All enemies are immune to ![]() and ![]() . |
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Wave | Name | Lvl | HP | Charge | Mode |
Boss | ![]() |
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2,700,000 | ◇ | No |
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2,700,000 | ◇◇ | No | |
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2,700,000 | ◇◇◇ | No |
Rewards | ||
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First clear: ![]() |
Wooden | Silver | Gold |
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The Mysterious Room |
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Cost to Host: 50 AP | Unlock: Clear Chapter 85 Story: Pholia the Maiden |
Location: Chapter 81: Merkmal Island - Sturren Fort | Start QuestNetwork Errors will appear if the hosting conditions are not met. (AP, Host Materials, Daily Limit) |
Stage strategy | |||||
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Guaranteed 1-3 ![]() ![]() ![]() |
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Wave | Name | Lvl | HP | Charge | Mode |
Boss | ![]() |
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2,800,000 | ◇◇ | Yes |
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2,400,000 | ◇◇◇◇◇ | Yes | |
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2,800,000 | ◇◇ | Yes |
Rewards | ||
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First clear: ![]() |
Wooden | Silver | Gold |
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Raids

Michael's Test |
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Cost to Host: 30 AP,![]() |
Cost to Join: Rank 40+, 3 EP | Unlock: Rank 40+, Clear Chapter 81 Quest: Indignant Conflagration |
Participants: 30 Vice: 2nd-6th | Elixirs: Unlimited | Strike Time: YesStrike Time bonus applies for this raid. |
Location: Chapter 81: Merkmal Island - Sturren Fort | Start QuestNetwork Errors will appear if the hosting conditions are not met. (AP, Host Materials, Daily Limit) |
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Lvl 100 Michael Lv100 ミカエル |
Phase | Name | Lvl | HP | Charge | Mode |
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Boss | Michael | ![]() |
211,110,000 | ◇◇◇ | Yes |
Special Attacks | Triggers and Notes | ||||
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N - Normal, OD - Overdrive, TR - Trigger |
Rewards | |||
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First clear: ![]() |
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Host: ![]() |
Join: ![]() |
Chest 1 | Chest 2 | Chest 3 | Chest 4 |
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Not guaranteed | Not guaranteed | ||
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Chest 5 | ![]() |
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- | - | ? Blue chest drop rate is based on your honor relative to the total honor of all participants in the raid. See Reward Chests for details. |
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Based on https://twitter.com/otokuro2/status/1215907383525773312. Drop table last updated: 2020-08-17, all stated drop rates are estimates. The game changes over time. If the drop tables become incorrect please notify the wiki staff. |
Bartwald
- A forest in the Zeman Plains. Those who enter gamble their future to test their faith.
Main Quests
Steuerwald
- A forest in the far reaches of Merkmal Island. Its inviting depths grant skyfarers passage to departure.
Main Quests
Treasure
Rare Monsters
Town Item
- Right (Antiquated Townscape)
- Bottom (Fortress Traps)
- Top (Fortress Overlook)
- Middle (Sturren Fort)
Reward: Premium Draw Ticket
Trivia
- Merkmal is German and means "trait", "attribute", "characteristic".
- Bartwald and Steuerwald both contain the German word for 'forest'.
- It is likely they cut the word 'Schlüsselbart' (key bit) into just 'Bart' (beard) to make it shorter. The translated name would then be 'Key Bit Forest'.
- 'Steuer' in this context likely translates to 'helm', or is a derivative of 'steuern' (to steer). Possible translations include 'Helm Forest' or 'Steering Forest'.