> For the complete documentation index, see [llms.txt](https://axiomemu.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://axiomemu.gitbook.io/docs/data/skill.md). # Skill Single source of truth for every skill's base data: damage, mana/AG cost, range, cooldown, damage type, status effect, level and stat requirements. Sent to the client at login via [Game Data Sync](/docs/data/game-data-sync.md), replacing the need for client-side `Skill_*.bmd` files. ## File Location ``` Data/Skill/Skill.txt ``` Loaded once at GameServer startup. Changes require a restart. ## Format Tab or space-delimited, 32 columns per row. First lines are comments; each row is one skill entry. Terminated by `end`. ## Columns | Col | Name | Effect | | ----- | ------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | 0 | `Index` | Skill ID. Must match the skill enum shared with the client | | 1 | `Name` | Display name, max 32 chars. Quote if it contains spaces | | 2 | `Damage` | Base damage value. Multiplied by level/formula | | 3 | `Mana` | Mana cost per use | | 4 | `BP` | Ability Gauge cost per use | | 5 | `Range` | Attack range in tiles (magic skills usually 6, melee 2-3) | | 6 | `Radio` | AoE radius in tiles. `0` = single target | | 7 | `Delay` | Cooldown in milliseconds | | 8 | `Type` | Damage type / element. `0` = Ice, `1` = Poison, `2` = Lightning, `3` = Fire, `4` = Earth, `5` = Wind, `6` = Water, `255` = none. The token `*` in the file is parsed as `255` | | 9 | `Effect` | Status effect applied on hit (maps to [Effect.xml](/docs/data/effect.md)) | | 10 | `RequireLevel` | Minimum character level to learn | | 11 | `RequireEnergy` | Minimum energy stat to cast | | 12 | `RequireLeadership` | Minimum command/leadership (Dark Lord) | | 13 | `RequireKillCount` | Monster kills required to unlock | | 14 | `RequireGuildStatus` | Required guild rank bitmask. `0x80` = Guild Master, `0x40` = Sub/Office Master, `0x20` = Battle Master. Values may be OR'd together. Server uses this for validation; client receives the expanded DutyClass flags during sync | | 15-21 | `RequireClass` (DW, DK, FE, MG, DL, SU, RF) | One column per class; `1` = class can use this skill, `0` = cannot. Column 15 is Dark Wizard, column 21 is Rage Fighter, matching the class order used elsewhere in the server | | 22 | `RequireStrength` | Minimum strength stat to cast | | 23 | `RequireDexterity` | Minimum dexterity stat to cast | | 24 | `MasteryType` | Master skill tree category (`1`-`6`, `255` = none) | | 25 | `SkillUseType` | How the skill is activated (`0` = normal attack, `1` = buff, `2` = passive, etc.) | | 26 | `SkillBrand` | Visual effect category identifier used by client effect selection | | 27 | `SkillRank` | Skill tier within its mastery tree | | 28 | `MagicIcon` | Client-side icon index shown on the skill bar | | 29 | `ItemSkill` | `1` if the skill is granted by an equipped item, `0` if learned. Currently `0` for all shipped rows; item-granted skills are still resolved in game logic, not via this column | | 30 | `IsDamage` | `1` if the skill deals damage, `0` if utility/buff/debuff. Affects client damage-number display | | 31 | `SkillCategory` | Client TypeSkill. `0` = CommonAttack (damage/attack), `1` = Buff (self/party), `2` = DeBuff (enemy), `3` = FriendlySkill (ally-targeting, e.g. Heal) | {% hint style="info" %} **Client sync**: `Radio` and `RequireGuildStatus` are server-only. `RequireGuildStatus` is expanded into three `DutyClass` flags on the wire. Every other column is sent to the client at login through [Game Data Sync](/docs/data/game-data-sync.md). Per-skill speed scaling from [SkillSpeedScale.xml](/docs/data/plugins/skillspeedscale.md) is layered in at the same time. Editing this file and restarting the GameServer is enough; no client-side BMD needs to be rebuilt. {% endhint %} ## Relationship to Other Skill Files * [**MasterSkillTree.txt**](/docs/data/skill/masterskilltree.md) - master skill prerequisites and tree-progression values per master level * [**SkillDamage.txt**](/docs/data/skill/skilldamage.md) - optional per-skill damage overrides vs users and monsters * [**Skill.dat**](/docs/gameserver/skill-dat.md) - global formula constants (ManaShield, Greater Defense, etc.) that layer on top of the base Damage from this file * [**SkillSpeedScale.xml**](/docs/data/plugins/skillspeedscale.md) - per-skill delay scaling and minimum-delay floor, also synced to client alongside this file * [**CustomCombo.xml**](/docs/data/plugins/customcombo.md) - primary and secondary skill lists for the cross-class combo system, referencing `Index` from this file * [**Character.dat**](/docs/gameserver/character-dat.md) - class/global damage rate multipliers applied on top of this file's `Damage` * `SkillElect.hit` in this folder is a binary client asset; do not edit on the server side ## Common Issues * **Skill shown but does no damage** - `Damage` is `0`, or the class's `RequireClass` column is `0` * **Skill won't learn** - `RequireLevel` / `RequireEnergy` / `RequireLeadership` / `RequireKillCount` / `RequireStrength` / `RequireDexterity` gate not met * **Range feels off vs client** - the client's view comes from the synced value of `Range`; server value is authoritative * **Skill cooldown too short / long** - `Delay` column; combined with per-skill override in SkillSpeedScale.xml * **Effect type wrong** - `Type` column maps to elemental resistances via [Monster.xml](/docs/data/monster/monster.md); wrong type bypasses the wrong resistance * **Change not applying** - clients already logged in keep the old skill data; reconnect or restart