Passive Skills Guide

Learn a book once. Keep the bonus forever.

Passive books permanently raise your stats — attack, defence, HP, MP, PvP power and more. Reach the required hero level, use the book, and the bonus is yours for good. Below is every book, its exact effect straight from the server, and where to get it.

53Passive books

22Permanent bonuses to fill

5Core stats with two stacking books

∞Permanent — never lost

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⚙️ How passives work

1

Hit the hero level

Each book needs a minimum hero level. Once you're there, use it to learn the passive.

2

It's permanent

Learned passives can never be lost or removed. The book is consumed; the bonus stays.

3

Higher tier replaces lower

Within one line, only the strongest book you own applies — a higher tier overwrites the weaker one. You can't stack two tiers of the same line.

4

Separate lines stack

Strength, Agility, Intelligence, HP and MP each have two independent books that add together. Get the best of each — don't skip one thinking it's replaced.

The one thing to remember

The old "just get the newest Act" advice is a trap. Str / Agi / Int / HP / MP each come from two separate book lines that stack — for example the Act 6.2 Strength book (+80 melee attack) and the Act 10 Strength book (+276 melee attack) both apply at once. Keep the top tier of every line below.

🎯 The books worth keeping22 passives — the top tier of every family. Everything below is the path to them.

Journal of the Forgotten Hero D (2) Forgotten Dimension Book of Power Journal of the Forgotten Hero S (2) Forgotten Dimension Book of Agility Journal of the Forgotten Hero J (2) Forgotten Dimension Book of Intelligence Journal of the Forgotten Hero M (2) Forgotten Dimension Book of Strength Journal of the Unknown Hero (2) Forgotten Dimension Book of Magic Attack Strategy of Lord Cuarry's Knights (2) Defensive Strategy of Lord Cuarry's Knights (2) [Expert] PvP Damage Boost [Expert] PvP Defence Boost Fairy Affinity (3) Forgotten Dimension Book of Experience Journal of the Akamur Merchants (1) White Wizards' Journal Vitality Guide Collector's Guide Forgotten Dimension Book of Fairy Power Forgotten Dimension Book of Attack Power

★ Keep = the strongest tier, the one to end up with. Books in the same line replace each other — only the highest you own applies. When a stat shows two lines, they are separate passives that stack — get the best of each.

⚔️

Strength

Melee attack & defence2 books · they stack

I

Journal of the Forgotten Hero D (1)Hero Lv 25

• Increases melee attack power by 80.
• Increases melee defence by 40.

Obtain

🏆 Angels I

II

Journal of the Forgotten Hero D (2)Hero Lv 48★ Keep

• Increases melee attack power by 100.
• Increases melee defence by 50.

Obtain

＋ also equip — it stacks

I

Lion Loa TomeHero Lv 60

• Increases melee attack power by 120.
• Increases melee defence by 60.

Obtain

II

Dragon Power TextbookHero Lv 70

• Increases melee attack power by 150.
• Increases melee defence by 75.

Obtain

III

Techron's Bone ResearchHero Lv 87

• Increases melee attack power by 200.
• Increases melee defence by 100.

Obtain

🏆 Nuclear Danger II

IV

Forgotten Dimension Book of PowerHero Lv 96★ Keep

• Increases melee attack power by 276.
• Increases melee defence by 138.

Obtain

🏆 Midgard Dimension

🏹

Agility

Ranged attack, dodge & hit rate2 books · they stack

I

Journal of the Forgotten Hero S (1)Hero Lv 25

• Increases ranged attack power by 80.
• Increases ranged defence by 40.
• Increases hit rate by 160.
• Increases dodge by 80.

Obtain

🏆 Demons I

II

Journal of the Forgotten Hero S (2)Hero Lv 48★ Keep

• Increases ranged attack power by 100.
• Increases ranged defence by 50.
• Increases hit rate by 200.
• Increases dodge by 100.

Obtain

＋ also equip — it stacks

I

Eagle Loa TomeHero Lv 60

• Increases ranged attack power by 120.
• Increases ranged defence by 60.
• Increases hit rate by 240.
• Increases dodge by 120.

Obtain

II

Dragon Agility TextbookHero Lv 70

• Increases ranged attack power by 150.
• Increases ranged defence by 75.
• Increases hit rate by 300.
• Increases dodge by 150.

Obtain

III

Techron's Cognition ResearchHero Lv 83

• Increases ranged attack power by 200.
• Increases ranged defence by 100.
• Increases hit rate by 400.
• Increases dodge by 200.

Obtain

🏆 Invader Forces II

IV

Forgotten Dimension Book of AgilityHero Lv 93★ Keep

• Increases ranged attack power by 276.
• Increases ranged defence by 138.
• Increases hit rate by 552.
• Increases dodge by 276.

Obtain

🏆 Joseon Dimension

🔮

Intelligence

Magic attack & defence2 books · they stack

I

Journal of the Forgotten Hero J (1)Hero Lv 25

• Increases magic attack power by 80.
• Increases magic defence by 40.

Obtain

🏆 Suspicious Person

II

Journal of the Forgotten Hero J (2)Hero Lv 48★ Keep

• Increases magic attack power by 100.
• Increases magic defence by 50.

Obtain

＋ also equip — it stacks

I

Snake Loa TomeHero Lv 60

• Increases magic attack power by 120.
• Increases magic defence by 60.

Obtain

II

Dragon Intellect TextbookHero Lv 70

• Increases magic attack power by 150.
• Increases magic defence by 75.

Obtain

III

Techron's Brain ResearchHero Lv 81

• Increases magic attack power by 220.
• Increases magic defence by 110.

Obtain

🏆 Royal Conflict II

IV

Forgotten Dimension Book of IntelligenceHero Lv 92★ Keep

• Increases magic attack power by 276.
• Increases magic defence by 138.

Obtain

🏆 Trojan Dimension

❤️

Maximum HP

Bonus HP2 books · they stack

I

Journal of the Forgotten Hero M (1)Hero Lv 30

• Increases maximum HP by 4000.

Obtain

🏆 Heaven Daily Quests🏆 Progression 13

II

Journal of the Forgotten Hero M (2)Hero Lv 48★ Keep

• Increases maximum HP by 6000.

Obtain

＋ also equip — it stacks

I

Bear Loa TomeHero Lv 60

• Increases maximum HP by 7000.

Obtain

II

Dragon Vitality TextbookHero Lv 80

• Increases maximum HP by 10000.

Obtain

III

Techron's Muscle ResearchHero Lv 90

• Increases maximum HP by 13000.

Obtain

🏆 Radioactive II

IV

Forgotten Dimension Book of StrengthHero Lv 99★ Keep

• Increases maximum HP by 16800.

Obtain

🏆 Beyond This World II

💧

Maximum MP

Bonus MP2 books · they stack

I

Journal of the Unknown Hero (1)Hero Lv 30

• Increases maximum MP by 4000.

Obtain

🏆 Hell Daily Quests🏆 Progression 14

II

Journal of the Unknown Hero (2)Hero Lv 48★ Keep

• Increases maximum MP by 6000.

Obtain

＋ also equip — it stacks

I

Spirit King TomeHero Lv 60

• Increases maximum MP by 7000.

Obtain

II

Dragon Magic TextbookHero Lv 75

• Increases maximum MP by 10000.

Obtain

III

Techron's Magic ResearchHero Lv 85

• Increases maximum MP by 13000.

Obtain

🏆 Deus Ex Machina II

IV

Forgotten Dimension Book of MagicHero Lv 94★ Keep

• Increases maximum MP by 16800.

Obtain

🏆 At World's End II

🗡️

Attack Power

Overall attack power

I

Attack Strategy of Lord Cuarry's Knights (1)Hero Lv 28

• Increases all types of attack power by 30.

Obtain

🏆 Demons III

II

Attack Strategy of Lord Cuarry's Knights (2)Hero Lv 38★ Keep

• Increases all types of attack power by 50.

Obtain

🛡️

Defence

Overall defence power

I

Defensive Strategy of Lord Cuarry's Knights (1)Hero Lv 28

• Increases all types of defence by 30.

Obtain

🏆 Angels III

II

Defensive Strategy of Lord Cuarry's Knights (2)Hero Lv 38★ Keep

• Increases all types of defence by 50.

Obtain

⚡

PvP Damage

Damage you deal in PvP

I

[Beginner] PvP Damage BoostHero Lv 10

• Increases damage in PvP by 1%.

Obtain

II

[Intermediate] PvP Damage BoostHero Lv 20

• Increases damage in PvP by 2%.

Obtain

III

[Advanced] PvP Damage BoostHero Lv 30

• Increases damage in PvP by 3%.

Obtain

IV

[Expert] PvP Damage BoostHero Lv 40★ Keep

• Increases damage in PvP by 5%.

Obtain

🏆 Unknown Souls

🌀

PvP Defence

Damage you take in PvP

I

[Beginner] PvP Defence BoostHero Lv 10

• Increases defence in PvP by 1%.

Obtain

II

[Intermediate] PvP Defence BoostHero Lv 20

• Increases defence in PvP by 2%.

Obtain

III

[Advanced] PvP Defence BoostHero Lv 30

• Increases defence in PvP by 3%.

Obtain

IV

[Expert] PvP Defence BoostHero Lv 45★ Keep

• Increases defence in PvP by 5%.

Obtain

🏆 Crusaders

🔥

Elemental Resistance

All elemental resistances

I

Fairy Affinity (1)Hero Lv 28

• Increases all elemental resistances by 10.

Obtain

🏆 Hero of Cylloan

II

Fairy Affinity (2)Hero Lv 89

• Increases all elemental resistances by 20.

Obtain

🏆 Patron of the Tunnels

III

Fairy Affinity (3)Hero Lv 99★ Keep

• Increases all elemental resistances by 25.

Obtain

🏆 Briton Dimension

✨

Experience

EXP earned

I

Aurelius Roshu's Primordial History (1)Hero Lv 18

• Increases experience earned by 5%.

Obtain

🏆 Angels II

II

Forgotten Dimension Book of ExperienceHero Lv 90★ Keep

• Increases experience earned by 10%.

Obtain

💰

Gold

Gold earned

Journal of the Akamur Merchants (1)Hero Lv 18★ Keep

• Increases Gold earned by 3%.

Obtain

🏆 Demons II

📜

Gold & Fame

Gold and fame earned

White Wizards' JournalHero Lv 60★ Keep

• Increases Gold earned by 3%.
• Increases fame earned by 5%.

Obtain

🏆 Wizard & Drake II

💠

HP & MP

Bonus HP and MP together

Vitality GuideHero Lv 30★ Keep

• Increases maximum HP by 3000.
• Increases maximum MP by 3000.

Source not yet documented.

🎟️

Raid Rewards

Chance for extra raid tokens & boxes

Collector's GuideHero Lv 30★ Keep

• Provides a 5% chance to gain an additional raid box.
• Provides a 5% chance to gain an additional raid token (excluding hardcore raid tokens).

Source not yet documented.

🧚

Fairy Element

Equipped fairy's element

Forgotten Dimension Book of Fairy PowerHero Lv 97★ Keep

• Increases the equipped fairy's element by 5.

Obtain

🏆 Dimensional Rift

💥

Attack %

All attacks, as a percentage

Forgotten Dimension Book of Attack PowerHero Lv 99★ Keep

• Increases all attacks by 3%.

Source not yet documented.

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FAQ

Do I need every book?

No — you need the top tier of each line (the ★ Keep books above). Lower tiers are just the stepping stones on the way there, and any book that shares a line with one you already own is redundant.

Do passives stack with each other?

Two tiers of the same line never stack — you keep only the strongest (using a weaker one does nothing). But different lines stack fully. That's why the five core stats above list two books each: they're separate passives that both apply.

Can I lose a passive?

Never. Once learned it's permanent — you can't drop, trade or overwrite it with anything except a higher tier of the same line, which is strictly an upgrade.

The effects mention Strength, Agility and Intelligence — what do those do?

Some older books are described in terms of attributes. Each point gives:

• 1 Strength → +1 melee attack, +0.5 ranged defence
• 1 Agility → +1 ranged attack, +0.5 ranged defence, +1 dodge, +2 hit rate
• 1 Intelligence → +1 magic attack, +0.5 magic defence

The effect text on each book above already shows the precise, in-game numbers — no conversion needed.

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Start filling your passives

Clear the raids and achievements that hand out the books, use them at the right hero level, and your character gets permanently stronger.

Keep exploring: Achievements · Raid Boxes · Drop Finder