King Sejong Evony Guide 2026: Skills, Best Use & Build

King Sejong Evony Guide 2026

King Sejong is a specialist Subordinate City Mayor in Evony: The King's Return.

He is best suited to:

• Subordinate City development

• Subordinate City Gold production

• Subordinate City construction

• increasing Subordinate City troop capacity

• anti-Ground debuffing after Ascension

• anti-Mounted debuffing after Ascension

• F2P and low-spend accounts

His biggest strengths are:

• very high Subordinate City Gold Production

• strong Subordinate City Construction Speed

• increased Subordinate City Troop Capacity

• Tavern accessibility

• useful Ground and Mounted Attack debuffs through Ascension

• strong anti-Mounted debuffs at 5-Star

• Death-to-Survival support

King Sejong should not be developed as a normal combat General.

His correct role is Subordinate City Mayor.

Is King Sejong Good in Evony?

Yes.

King Sejong is one of the most accessible Subordinate City development Generals.

His Special Skill provides:

• Subordinate City Gold Production Speed +75%

while he is serving as Mayor.

That makes him useful immediately, even with no Ascension or Specialty investment.

His Specialties then improve:

• Gold Production

• Construction Speed

• Troop Capacity

while Ascension gives him a second role as an anti-Ground and anti-Mounted debuffer.

King Sejong Best Role

Best Role: Subordinate City Mayor

Primary Use:

• Sub City development

• Gold production

• Construction Speed

• Troop Capacity

Secondary Use After Ascension:

• anti-Ground PvP debuffing

• anti-Mounted PvP debuffing

Avoid Using For:

• Ground PvP Main

• Mounted PvP Main

• Ranged PvP

• Siege PvP

• Monster Hunting

• Main City Defense

King Sejong's entire kit is built around the Subordinate City.

King Sejong Special Skill

King Sejong's Special Skill is:

Civilization

When King Sejong is the Mayor of a Subordinate City:

• Gold Production Speed +75%

This is a large passive economy boost.

Gold is especially important for:

• research

• General development

• Tavern recruitment

• refining and account progression

For developing accounts, extra Sub City Gold can be valuable over long periods.

King Sejong Ascension

Ascending King Sejong transforms him from a pure economy Mayor into a useful PvP debuffer.

1 Star

• Enemy Ground Troop Attack -15%

• Enemy Mounted Troop Attack -15%

This immediately gives King Sejong real combat value.

2 Stars

• Enemy Ground Troop Defense -5%

• Enemy Mounted Troop Defense -5%

• Subordinate City Training Speed +30%

This combines troop replacement with additional debuffing.

3 Stars

• Enemy Ground Troop HP -5%

• Enemy Mounted Troop HP -5%

• Death into Survival Rate in this Subordinate City +20%

This improves both:

• PvP debuffing

• Sub City troop survivability

4 Stars

• Enemy Troop Attack -10%

This is a broad debuff affecting:

• Ground

• Mounted

• Ranged

• Siege

5 Stars

• Enemy Mounted Troop Attack -20%

• Enemy Mounted Troop Defense -20%

• Enemy Mounted Troop HP -20%

The fifth star makes King Sejong significantly stronger against Mounted Troops.

King Sejong's Total Anti-Ground Debuffs

At full Ascension, King Sejong can reduce:

Enemy Ground Attack:

• -15% at 1-Star

• -10% broad Enemy Attack at 4-Star

Total:

• Enemy Ground Attack -25%

Enemy Ground Defense:

• -5% at 2-Star

Enemy Ground HP:

• -5% at 3-Star

This gives him useful anti-Ground support, although Ground is not his strongest debuff target.

King Sejong's Total Anti-Mounted Debuffs

Mounted Troops are where King Sejong becomes much more interesting.

At full Ascension he can reduce:

Enemy Mounted Attack:

• -15% at 1-Star

• -10% at 4-Star

• -20% at 5-Star

Total:

• Enemy Mounted Attack -45%

Enemy Mounted Defense:

• -5% at 2-Star

• -20% at 5-Star

Total:

• Enemy Mounted Defense -25%

Enemy Mounted HP:

• -5% at 3-Star

• -20% at 5-Star

Total:

• Enemy Mounted HP -25%

This makes a fully Ascended King Sejong a respectable anti-Mounted Sub City Mayor.

King Sejong Specialties

King Sejong has four Specialties.

Ground Troop Defense

• Ground Troop HP +10%

• Ground Troop Defense +10%

This is a small combat effect.

It is not the main reason to use King Sejong.

Pacify

Applied to Subordinate City Mayor:

• Gold Production Speed +36%

• Construction Speed +36%

This is excellent for developing a Sub City.

Ruler

Applied to Subordinate City Mayor:

• Troop Capacity +36%

This allows the Sub City to maintain more troops.

Hangul

Applied to Subordinate City Mayor:

• Gold Production Speed +40%

• Construction Speed +40%

Hangul is King Sejong's standout development Specialty.

It significantly improves both economy and building progress.

How Much Gold Production Can King Sejong Add?

King Sejong gains:

• Gold Production +75% from Civilization

• Gold Production +36% from Pacify

• Gold Production +40% from Hangul

That gives:

151% Subordinate City Gold Production Speed

from his own fully developed kit.

This is King Sejong's defining economy advantage.

How Much Construction Speed Can King Sejong Add?

King Sejong gains:

• Construction Speed +36% from Pacify

• Construction Speed +40% from Hangul

That gives:

76% Subordinate City Construction Speed

from his Specialties.

This is extremely useful for newly captured or underdeveloped Subordinate Cities.

How Much Troop Capacity Can King Sejong Add?

Ruler provides:

• Subordinate City Troop Capacity +36%

This allows the Sub City to maintain a larger army.

A larger Sub City troop pool can improve its contribution during PvP.

How Much Training Speed Can King Sejong Add?

At 2-Star Ascension, King Sejong gains:

• Subordinate City Training Speed +30%

This improves troop replacement after losses.

If you also use a Lv4 Training Speed Skill Book:

• Training Speed +25%

the total contribution from those two sources becomes:

55%

before any other Sub City systems.

King Sejong and Death-to-Survival

At 3-Star Ascension, King Sejong gains:

• Subordinate City Death-to-Survival Rate +20%

This helps preserve more Subordinate City troops after combat.

That is especially useful for active PvP players because Sub City troops can suffer heavy losses.

Best Skill Books for King Sejong

For pure Subordinate City development, use:

• Lv4 Training Capacity

• Lv4 Construction

• Lv4 Training Speed

These improve:

• troop capacity

• building development

• troop replacement

Do not use a Gold Production Skill Book.

King Sejong already has:

• Gold Production +75%

from Civilization, so the equivalent Gold Production book conflicts with his fixed skill.

Does King Sejong Need Combat Skill Books?

No.

His PvP value comes from:

• Ascension debuffs

• debuff equipment

• Sub City Mayor effects

rather than trying to turn him into a normal field General.

Development Skill Books are generally the better choice.

Best Equipment for King Sejong

King Sejong has two possible equipment approaches.

During Sub City development, prioritise:

• Construction Speed

• Troop Capacity

• development utility

Once the Sub City is developed and King Sejong is being used seriously in PvP, switch toward debuff equipment.

Prioritise equipment that reduces:

• Enemy Troop Attack

• Enemy Troop Defense

• Enemy Troop HP

Achaemenidae and similar debuff-focused equipment can significantly improve his combat contribution.

King Sejong as a Development Mayor

This is his strongest early role.

King Sejong can provide:

• Gold Production +151%

• Construction Speed +76%

• Troop Capacity +36%

when fully specialised.

That makes him excellent for developing Subordinate Cities.

He is especially useful when you have recently acquired a higher-quality Sub City that still needs:

• buildings

• troops

• economic development

King Sejong as a PvP Mayor

At zero Ascension, King Sejong is mostly an economy General.

Ascension changes that.

He eventually adds:

• Enemy Ground Attack reduction

• Enemy Mounted Attack reduction

• Enemy Ground Defense reduction

• Enemy Mounted Defense reduction

• Enemy Ground HP reduction

• Enemy Mounted HP reduction

• broad Enemy Attack reduction

This gives him a useful development-to-PvP progression path.

King Sejong Against Mounted Troops

Mounted Troops are his strongest target.

At full Ascension, King Sejong can reduce:

• Mounted Attack -45%

• Mounted Defense -25%

• Mounted HP -25%

before equipment.

That is a respectable anti-Mounted package from a Tavern-accessible General.

King Sejong Against Ground Troops

King Sejong also reduces Ground:

• Attack -25%

• Defense -5%

• HP -5%

at full Ascension.

This is useful, but much weaker than his anti-Mounted package.

King Sejong Against Ranged Troops

King Sejong has very little Ranged-specific debuffing.

At full Ascension, Ranged receives:

• Enemy Attack -10%

from his broad 4-Star effect.

Use other Sub City Generals if Ranged is your main target.

King Sejong Against Siege Machines

Siege receives the same broad:

• Enemy Attack -10%

from 4-Star Ascension.

He does not provide major Siege-specific debuffs.

Should King Sejong Remain Mayor During PvP?

This depends on his development.

If King Sejong is unascended and you have a strong dedicated debuff Mayor available, the dedicated PvP General may provide more combat value.

Once King Sejong is heavily Ascended, the calculation changes.

His anti-Mounted package becomes much more useful.

That means King Sejong can progress from:

• economy Mayor

into:

• legitimate anti-Mounted PvP Mayor

without needing to be discarded.

King Sejong vs Catherine II

King Sejong and Catherine II are both accessible Sub City development Generals.

Their focus is different.

King Sejong specialises in:

• Gold Production

• Construction Speed

• Troop Capacity

• anti-Ground debuffs

• especially anti-Mounted debuffs

Catherine II specialises in:

• Training Speed

• Gold Production

• Construction Speed

• Troop Capacity

• anti-Ranged debuffs

• anti-Siege debuffs

This makes them complementary rather than direct duplicates.

A player using multiple Subordinate Cities can find room for both.

King Sejong vs Dedicated Debuff Generals

Pure PvP debuff Generals can provide much stronger immediate combat effects.

King Sejong's advantage is:

• accessibility

• economic utility

• development value

• useful Ascension debuffs

He is ideal for players who want one General to help build the Sub City and remain useful afterwards.

Is King Sejong Still Relevant in 2026?

Yes.

His economy package remains useful because Subordinate Cities still benefit from:

• Gold

• Construction Speed

• Troop Capacity

• faster troop replacement

His Ascension also gives him a useful second life in PvP.

That makes him more durable against power creep than many old field Generals.

Is King Sejong F2P Friendly?

Yes.

King Sejong is available from the Tavern.

Current sources list his cost at:

• 27,000,000 Gold

That makes him very accessible to F2P and low-spend players.

It also gives players a realistic route to obtaining duplicates for Ascension.

How to Obtain King Sejong

King Sejong can be recruited from the Tavern.

Current sources list his Tavern cost at:

• 27,000,000 Gold

This makes him one of the more accessible Subordinate City development Generals.

Is King Sejong Worth Ascending?

Potentially yes.

His Ascension adds:

• Enemy Ground Attack reduction

• Enemy Mounted Attack reduction

• Enemy Ground Defense reduction

• Enemy Mounted Defense reduction

• Enemy Ground HP reduction

• Enemy Mounted HP reduction

• broad Enemy Attack reduction

• Subordinate City Training Speed

• Subordinate City Death-to-Survival

A fully Ascended King Sejong is much more useful in PvP than his base skill suggests.

However, Blood of Ares is valuable.

Main PvP Generals and Wall Generals should usually receive priority first.

Is King Sejong Worth Specialties?

Yes, if Subordinate City development matters to your account.

His Specialties can provide:

• Gold Production +76%

• Construction Speed +76%

• Troop Capacity +36%

on top of his base Gold Production bonus.

However, Runestones are expensive.

If your Sub Cities are already fully developed, the return from maxing these economy Specialties becomes less compelling.

Is King Sejong Worth Investing In?

King Sejong is worth using if:

• you are F2P or low-spend

• you want more Sub City Gold

• you are developing Subordinate Cities

• you need faster Sub City construction

• you need more Sub City troop capacity

• you want an eventual anti-Mounted debuffer

• you can realistically obtain Tavern duplicates

He is less urgent if:

• all your Sub Cities are already developed

• you already own stronger dedicated PvP Mayors

• Blood of Ares is limited

• Runestones are limited

• Mounted enemies are not a major concern

TEBA 2026 Reality Check

King Sejong looks like a pure economy General at first.

His base skill only provides:

• Subordinate City Gold Production +75%

But that does not tell the whole story.

Fully specialised, his development package reaches:

• Gold Production +151%

• Construction Speed +76%

• Troop Capacity +36%

and Ascension can add:

• Training Speed +30%

• Death-to-Survival +20%

• Enemy Ground Attack -25%

• Enemy Mounted Attack -45%

• Enemy Mounted Defense -25%

• Enemy Mounted HP -25%

before equipment.

That gives him a very useful progression path.

Use him first to build the Subordinate City.

Then allow Ascension to turn him into a useful anti-Mounted PvP Mayor.

TEBA Verdict

King Sejong is an excellent F2P-friendly Subordinate City development General with useful anti-Ground and especially anti-Mounted debuffs after Ascension.

His base Special Skill provides:

• Subordinate City Gold Production +75%

His Specialties then add:

• Gold Production +76%

• Construction Speed +76%

• Troop Capacity +36%

giving him:

• Gold Production +151%

from his fully developed economy kit.

His Ascension then adds:

• Sub City Training Speed

• Death-to-Survival

• Enemy Ground Attack reduction

• Enemy Ground Defense reduction

• Enemy Ground HP reduction

• strong Enemy Mounted Attack reduction

• Enemy Mounted Defense reduction

• Enemy Mounted HP reduction

• broad Enemy Attack reduction

His biggest strengths are:

• outstanding Sub City Gold Production

• excellent Construction Speed

• useful Troop Capacity

• strong anti-Mounted Ascension

• Tavern accessibility

• realistic F2P Ascension

• useful development-to-PvP progression

His biggest limitation is that his PvP value requires significant Ascension.

At zero Ascension, he is overwhelmingly an economy General.

For F2P and low-spend players, King Sejong remains a very useful Subordinate City Mayor in 2026.

Use him to build the Sub City first, then let Ascension give him a second life as an anti-Mounted PvP debuffer.