> For the complete documentation index, see [llms.txt](https://docs.morpheusemulator.com.br/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.morpheusemulator.com.br/muserver/gameserver/skill.md).

# GameServerInfo - Skill

## What it does

Sets the formulas of buffs, debuffs and special skills: how strong they are, how long they last, and how much of the effect each class receives. Skill damage, mana cost, range and requirements are in `Data/Skill/Skill.txt` (see [Skills](/game-data/skills.md)); this file covers the effect values.

## Where it lives

* `GameServer/Data/GameServerInfo - Skill.dat`
* `GameServerCS/Data/GameServerInfo - Skill.dat` (separate copy)

INI format, section `[GameServerInfo]`. Every key defaults to **0** when missing.

## How to read the formulas

| Kind of key                      | Meaning                                                                                                                              |
| -------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
| `...ConstA`, `...ConstB`...      | Parts of the formula. A constant that **divides** a stat works backwards: a bigger number gives a weaker effect.                     |
| `...TimeConstA`, `...TimeConstB` | Duration. Usually **seconds = TimeConstA + Energy / TimeConstB**, or just TimeConstA.                                                |
| `...MaxRate`                     | Cap of the effect, in percent.                                                                                                       |
| `...Rate<C>`                     | Percentage of the effect received by a **target** of class `<C>` (`100` = full effect). Lets you make a buff weaker on some classes. |

In the formulas, *Energy*, *Agility*, *Vitality*, *Strength* and *Command* are the caster's total stats (base + items).

{% hint style="danger" %}
Never leave a divisor at 0 (a missing key is 0). Keep every key of a skill present.
{% endhint %}

## Reload

`/reload skill`. Buffs already active keep their old values until they are recast.

***

## Mana Shield Skill Settings

Dark Wizard's Mana Shield (Soul Barrier).

| Key                                                        | Default | Values  | Description                                                                                      |
| ---------------------------------------------------------- | ------- | ------- | ------------------------------------------------------------------------------------------------ |
| `ManaShieldConstA`, `ManaShieldConstB`, `ManaShieldConstC` | 0       |         | Damage absorbed by mana (%) = A + Agility / B + Energy / C.                                      |
| `ManaShieldMaxRate`                                        | 0       | percent | Cap. Shipped: 50.                                                                                |
| `ManaShieldRate<C>` (14 keys)                              | 0       | percent | Share of the effect for each target class. Shipped: DW 100, DK 24, others 25; newer classes 100. |
| `ManaShieldTimeConstA`, `ManaShieldTimeConstB`             | 0       |         | Seconds = A + Energy / B.                                                                        |

## Defense Skill Settings

The Defense skill (shield block).

| Key                 | Default | Values  | Description                                   |
| ------------------- | ------- | ------- | --------------------------------------------- |
| `DefenseConstA`     | 0       | percent | Damage reduction while blocking. Shipped: 30. |
| `DefenseTimeConstA` | 0       | seconds | How long the block lasts. Shipped: 4.         |

## Heal Skill Settings

Fairy Elf's Heal.

| Key                        | Default | Values | Description                 |
| -------------------------- | ------- | ------ | --------------------------- |
| `HealConstA`, `HealConstB` | 0       |        | HP healed = A + Energy / B. |

## Greater Defense Skill Settings

Fairy Elf's Greater Defense.

| Key                                            | Default | Values  | Description                                |
| ---------------------------------------------- | ------- | ------- | ------------------------------------------ |
| `GreaterDefenseConstA`, `GreaterDefenseConstB` | 0       |         | Defense added = A + Energy / B.            |
| `GreaterDefenseRate<C>` (14 keys)              | 0       | percent | Share of the effect for each target class. |
| `GreaterDefenseTimeConstA`                     | 0       | seconds | Duration. Shipped: 7200 (2 hours).         |

## Greater Damage Skill Settings

Fairy Elf's Greater Damage.

| Key                                          | Default | Values  | Description                                |
| -------------------------------------------- | ------- | ------- | ------------------------------------------ |
| `GreaterDamageConstA`, `GreaterDamageConstB` | 0       |         | Damage added = A + Energy / B.             |
| `GreaterDamageRate<C>` (14 keys)             | 0       | percent | Share of the effect for each target class. |
| `GreaterDamageTimeConstA`                    | 0       | seconds | Duration.                                  |

## Summon Monster Skill Settings

Fairy Elf summons.

| Key                                  | Default | Values        | Description                                                                                                                                                                  |
| ------------------------------------ | ------- | ------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `SummonMonster1` to `SummonMonster7` | 0       | monster index | Monster created by summon skills 1 to 7 (Goblin, Stone Golem, Assassin, Elite Yeti, Dark Knight, Bali, Soldier in the original game). Shipped: 26, 32, 21, 20, 10, 150, 151. |
| `SummonMonster8`                     | 0       | monster index | Monster of the Summon Satyros skill. Shipped: 353.                                                                                                                           |

## Greater Life Skill Settings

Dark Knight's Swell Life.

| Key                                                           | Default | Values  | Description                                       |
| ------------------------------------------------------------- | ------- | ------- | ------------------------------------------------- |
| `GreaterLifeConstA`, `GreaterLifeConstB`, `GreaterLifeConstC` | 0       |         | Max HP bonus (%) = A + Vitality / B + Energy / C. |
| `GreaterLifeMaxRate`                                          | 0       | percent | Cap.                                              |
| `GreaterLifeRate<C>` (14 keys)                                | 0       | percent | Share of the effect for each target class.        |
| `GreaterLifeTimeConstA`, `GreaterLifeTimeConstB`              | 0       |         | Seconds = A + Energy / B.                         |

## Fire Slash Skill Settings

| Key                                  | Default | Values  | Description                                      |
| ------------------------------------ | ------- | ------- | ------------------------------------------------ |
| `FireSlashConstA`, `FireSlashConstB` | 0       |         | Target defense reduction (%) = A + Strength / B. |
| `FireSlashMaxRate`                   | 0       | percent | Cap.                                             |
| `FireSlashTimeConstA`                | 0       | seconds | Duration.                                        |

## Greater Critical Damage Skill Settings

Dark Lord's Critical Damage.

| Key                                                                  | Default | Values | Description                                       |
| -------------------------------------------------------------------- | ------- | ------ | ------------------------------------------------- |
| `GreaterCriticalDamageConstA`, `GreaterCriticalDamageConstB`         | 0       |        | Critical damage bonus = Energy / A + Command / B. |
| `GreaterCriticalDamageTimeConstA`, `GreaterCriticalDamageTimeConstB` | 0       |        | Seconds = A + Energy / B.                         |

## Stern Skill Settings

Stun.

| Key               | Default | Values  | Description    |
| ----------------- | ------- | ------- | -------------- |
| `SternTimeConstA` | 0       | seconds | Stun duration. |

## Greater Mana Skill Settings

Swell Mana.

| Key                     | Default | Values  | Description     |
| ----------------------- | ------- | ------- | --------------- |
| `GreaterManaConstA`     | 0       | percent | Max mana bonus. |
| `GreaterManaTimeConstA` | 0       | seconds | Duration.       |

## Invisibility Skill Settings

| Key                      | Default | Values  | Description                           |
| ------------------------ | ------- | ------- | ------------------------------------- |
| `InvisibilityTimeConstA` | 0       | seconds | Duration (Castle Siege invisibility). |

## Brand Skill Settings

| Key               | Default | Values  | Description                   |
| ----------------- | ------- | ------- | ----------------------------- |
| `BrandTimeConstA` | 0       | seconds | Duration of the Brand effect. |

## Infinity Arrow Skill Settings

| Key                       | Default | Values  | Description                                                                                                                                |
| ------------------------- | ------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
| `InfinityArrowTimeConstA` | 0       | seconds | Duration. Shipped: 86640 (about 24 hours). See also `InfinityArrow_AL*` in [Common](/muserver/gameserver/common.md#infinity-arrow-switch). |

## Magic Damage Immunity Skill Settings

| Key                             | Default | Values  | Description                           |
| ------------------------------- | ------- | ------- | ------------------------------------- |
| `MagicDamageImmunityTimeConstA` | 0       | seconds | Duration of immunity to magic damage. |

## Physi Damage Immunity Skill Settings

| Key                             | Default | Values  | Description                              |
| ------------------------------- | ------- | ------- | ---------------------------------------- |
| `PhysiDamageImmunityTimeConstA` | 0       | seconds | Duration of immunity to physical damage. |

## Drain Life Skill Settings

Summoner's Drain Life.

| Key                                  | Default | Values | Description                                 |
| ------------------------------------ | ------- | ------ | ------------------------------------------- |
| `DrainLifeConstA`, `DrainLifeConstB` | 0       |        | HP drained = damage × A / 100 + Energy / B. |

## Reflect Damage Skill Settings

Summoner's Damage Reflection.

| Key                                                  | Default | Values  | Description                                |
| ---------------------------------------------------- | ------- | ------- | ------------------------------------------ |
| `ReflectDamageConstA`, `ReflectDamageConstB`         | 0       |         | Reflect (%) = A + Energy / B.              |
| `ReflectDamageMaxRate`                               | 0       | percent | Cap.                                       |
| `ReflectDamageRate<C>` (14 keys)                     | 0       | percent | Share of the effect for each target class. |
| `ReflectDamageTimeConstA`, `ReflectDamageTimeConstB` | 0       |         | Seconds = A + Energy / B.                  |

The reflected damage is then multiplied by `ReflectDamageRatePvP` / `ReflectDamageRatePvM` of [Character](/muserver/gameserver/character.md#character-damage-rate-settings).

## Sword Power Skill Settings

Summoner's Berserker.

| Key                                            | Default | Values  | Description                                                     |
| ---------------------------------------------- | ------- | ------- | --------------------------------------------------------------- |
| `SwordPowerConstA`                             | 0       | divisor | Damage and wizardry bonus (%) = Energy / A.                     |
| `SwordPowerConstB`                             | 0       | divisor | Defense and life penalty (%) = 40 − Energy / B, never below 10. |
| `SwordPowerMaxRate`                            | 0       | percent | Cap of the bonus.                                               |
| `SwordPowerTimeConstA`, `SwordPowerTimeConstB` | 0       |         | Seconds = A + Energy / B.                                       |

## Sleep Skill Settings

| Key                                  | Default | Values  | Description                          |
| ------------------------------------ | ------- | ------- | ------------------------------------ |
| `SleepConstA`, `SleepConstB`         | 0       |         | Success chance (%) = A + Energy / B. |
| `SleepTimeConstA`, `SleepTimeConstB` | 0       |         | Seconds = A + Energy / B.            |
| `SleepMaxTime`                       | 0       | seconds | Cap of the duration.                 |

## Lesser Defense Skill Settings

Summoner's Innovation (defense debuff).

| Key                                                  | Default | Values  | Description                             |
| ---------------------------------------------------- | ------- | ------- | --------------------------------------- |
| `LesserDefenseConstA`, `LesserDefenseConstB`         | 0       |         | Success chance (%) = A + Energy / B.    |
| `LesserDefenseConstC`, `LesserDefenseConstD`         | 0       |         | Defense reduction (%) = C + Energy / D. |
| `LesserDefenseMaxRate`                               | 0       | percent | Cap of the reduction.                   |
| `LesserDefenseTimeConstA`, `LesserDefenseTimeConstB` | 0       |         | Seconds = A + Energy / B.               |

## Lesser Damage Skill Settings

Summoner's Weakness (damage debuff).

| Key                                                | Default | Values  | Description                            |
| -------------------------------------------------- | ------- | ------- | -------------------------------------- |
| `LesserDamageConstA`, `LesserDamageConstB`         | 0       |         | Success chance (%) = A + Energy / B.   |
| `LesserDamageConstC`, `LesserDamageConstD`         | 0       |         | Damage reduction (%) = C + Energy / D. |
| `LesserDamageMaxRate`                              | 0       | percent | Cap of the reduction.                  |
| `LesserDamageTimeConstA`, `LesserDamageTimeConstB` | 0       |         | Seconds = A + Energy / B.              |

## Sahamutt Skill Settings

| Key              | Default | Values  | Description                                                                        |
| ---------------- | ------- | ------- | ---------------------------------------------------------------------------------- |
| `SahamuttConstA` | 0       | percent | Damage of the Sahamutt (Explosion) follow-up hit, as a percentage of the base hit. |

## Neil Skill Settings

| Key          | Default | Values  | Description                                                                  |
| ------------ | ------- | ------- | ---------------------------------------------------------------------------- |
| `NeilConstA` | 0       | percent | Damage of the Neil (Requiem) follow-up hit, as a percentage of the base hit. |

## Magic Circle Skill Settings

Dark Wizard's Expansion of Wizardry.

| Key                     | Default | Values  | Description                                                     |
| ----------------------- | ------- | ------- | --------------------------------------------------------------- |
| `MagicCircleConstA`     | 0       | percent | Wizardry bonus = (Energy / `DWMagicDamageMinConstA`) × A / 100. |
| `MagicCircleTimeConstA` | 0       | seconds | Duration.                                                       |

## Shield Recover Skill Settings

| Key                                          | Default | Values | Description                                       |
| -------------------------------------------- | ------- | ------ | ------------------------------------------------- |
| `ShieldRecoverConstA`, `ShieldRecoverConstB` | 0       |        | SD restored = (skill level + 1) × A + Energy / B. |

## Dragon Slayer Skill Settings

Rage Fighter's Dragon Slayer.

| Key                                        | Default | Values  | Description                                        |
| ------------------------------------------ | ------- | ------- | -------------------------------------------------- |
| `DragonSlayerConstA`, `DragonSlayerConstB` | 0       |         | Chance (%) of the special effect = A + Energy / B. |
| `DragonSlayerConstC`, `DragonSlayerConstD` | 0       |         | Effect value (%) = C + Energy / D.                 |
| `DragonSlayerMaxRate`                      | 0       | percent | Cap.                                               |

## Greater Ignore Defense Rate Skill Settings

Rage Fighter's Ignore Defense.

| Key                                                                | Default | Values | Description                                    |
| ------------------------------------------------------------------ | ------- | ------ | ---------------------------------------------- |
| `GreaterIgnoreDefenseRateConstA`, `GreaterIgnoreDefenseRateConstB` | 0       |        | Chance (%) to ignore defense = A + Energy / B. |
| `GreaterIgnoreDefenseRateTimeConstA`, `...TimeConstB`              | 0       |        | Seconds = A + Energy / B.                      |

## Fitness Skill Settings

Rage Fighter's Increase Health.

| Key                                      | Default | Values | Description                      |
| ---------------------------------------- | ------- | ------ | -------------------------------- |
| `FitnessConstA`, `FitnessConstB`         | 0       |        | Vitality bonus = A + Energy / B. |
| `FitnessTimeConstA`, `FitnessTimeConstB` | 0       |        | Seconds = A + Energy / B.        |

## Greater Defense Success Rate Skill Settings

Rage Fighter's Increase Block.

| Key                                                    | Default | Values | Description                          |
| ------------------------------------------------------ | ------- | ------ | ------------------------------------ |
| `GreaterDefenseSuccessRateConstA`, `...ConstB`         | 0       |        | Defense rate bonus = A + Energy / B. |
| `GreaterDefenseSuccessRateTimeConstA`, `...TimeConstB` | 0       |        | Seconds = A + Energy / B.            |

## Party Heal Skill Settings

| Key                                  | Default | Values | Description                                  |
| ------------------------------------ | ------- | ------ | -------------------------------------------- |
| `PartyHealConstA`, `PartyHealConstB` | 0       |        | HP healed per party member = A + Energy / B. |

## Bless Skill Settings

| Key               | Default | Values  | Description         |
| ----------------- | ------- | ------- | ------------------- |
| `BlessConstA`     | 0       | divisor | Bonus = Energy / A. |
| `BlessTimeConstA` | 0       | seconds | Duration.           |

## Blind Skill Settings

| Key                          | Default | Values  | Description                                           |
| ---------------------------- | ------- | ------- | ----------------------------------------------------- |
| `BlindConstA`, `BlindConstB` | 0       |         | Success chance (%) = A + Energy / B.                  |
| `BlindConstC`                | 0       | percent | Strength of the blind effect (attack rate reduction). |
| `BlindTimeConstA`            | 0       | seconds | Duration.                                             |

## Earth Prison Skill Settings

| Key                 | Default | Values  | Description                      |
| ------------------- | ------- | ------- | -------------------------------- |
| `EarthPrisonConstA` | 0       | percent | Chance to immobilize the target. |

## Iron Defense Skill Settings

| Key                                      | Default | Values  | Description                                                                   |
| ---------------------------------------- | ------- | ------- | ----------------------------------------------------------------------------- |
| `IronDefenseConstA`, `IronDefenseConstB` | 0       |         | The two values of the Iron Defense buff (defense and HP). Shipped: 800 / 800. |
| `IronDefenseTimeConstA`                  | 0       | seconds | Duration.                                                                     |

## Blood Howling Skill Settings

| Key                      | Default | Values  | Description                           |
| ------------------------ | ------- | ------- | ------------------------------------- |
| `BloodHowlingConstA`     | 0       | percent | Chance of the bleeding effect on hit. |
| `BloodHowlingConstB`     | 0       | damage  | Damage of the bleeding effect.        |
| `BloodHowlingTimeConstA` | 0       | seconds | Duration of the buff.                 |

***

## Example

Make the Elf's Greater Damage weaker on Magic Gladiators and Dark Knights and last 1 hour:

```ini
GreaterDamageConstA = 3
GreaterDamageConstB = 7
GreaterDamageRateDK = 9
GreaterDamageRateMG = 9
GreaterDamageTimeConstA = 3600
```

## Rules and pitfalls

* **Durations are in seconds.** The shipped buffs last 7200 seconds (2 hours); the original game used much shorter times.
* **Class rates apply to the target**, not the caster. `ManaShieldRateDK = 24` means a Dark Knight receiving a Wizard's Mana Shield gets 24 % of the effect.
* **Caps first, rates after**: the `MaxRate` cap applies to the formula, then the class rate reduces it.
* **The newer-class keys** (GL to KIN) are only in the normal GameServer copy. The shipped GameServerCS copy has the Season 6 classes only and also lacks the Party Heal, Bless, Blind, Earth Prison, Iron Defense and Blood Howling blocks, so those skills have 0 values on Castle Siege maps unless you add them.


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