> For the complete documentation index, see [llms.txt](https://stellarskills.gitbook.io/stellarskills-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://stellarskills.gitbook.io/stellarskills-docs/reference/effects/battle_type.md).

# battle\_type

[All effects and shared choice parameters](/stellarskills-docs/readme.md) · [Effect math and limitations](file:///configuration/effects.md)

## `pixelmon.damage_taken_from_type`

Native Pixelmon/NeoForge hook when the target API exposes a safe mutation point.

| Property                    | Value                                                                                                                      |
| --------------------------- | -------------------------------------------------------------------------------------------------------------------------- |
| Hook descriptor             | `battle_damage`                                                                                                            |
| Optional integration owner  | None declared                                                                                                              |
| Runtime evidence            | Native consumer/source reference                                                                                           |
| Source reference            | PixelmonHooks.java (generated type family)                                                                                 |
| Declared enabled-by-default | True                                                                                                                       |
| Probability flag            | False                                                                                                                      |
| Allowed operations          | `add_flat`, `add_percent_points`, `multiply_base`, `multiply_final`, `set_min`, `set_max`, `override`, `deny`, `transform` |
| Value label                 | Value by rank                                                                                                              |
| Value help                  | The selected operation controls how this value changes the base.                                                           |
| Schema value example        | `1.10`                                                                                                                     |

### Available effect keys

| Type     | Exact key                                  |
| -------- | ------------------------------------------ |
| Bug      | `pixelmon.damage_taken_from_type.bug`      |
| Dark     | `pixelmon.damage_taken_from_type.dark`     |
| Dragon   | `pixelmon.damage_taken_from_type.dragon`   |
| Electric | `pixelmon.damage_taken_from_type.electric` |
| Fairy    | `pixelmon.damage_taken_from_type.fairy`    |
| Fighting | `pixelmon.damage_taken_from_type.fighting` |
| Fire     | `pixelmon.damage_taken_from_type.fire`     |
| Flying   | `pixelmon.damage_taken_from_type.flying`   |
| Ghost    | `pixelmon.damage_taken_from_type.ghost`    |
| Grass    | `pixelmon.damage_taken_from_type.grass`    |
| Ground   | `pixelmon.damage_taken_from_type.ground`   |
| Ice      | `pixelmon.damage_taken_from_type.ice`      |
| Mystery  | `pixelmon.damage_taken_from_type.mystery`  |
| Normal   | `pixelmon.damage_taken_from_type.normal`   |
| Poison   | `pixelmon.damage_taken_from_type.poison`   |
| Psychic  | `pixelmon.damage_taken_from_type.psychic`  |
| Rock     | `pixelmon.damage_taken_from_type.rock`     |
| Steel    | `pixelmon.damage_taken_from_type.steel`    |
| Stellar  | `pixelmon.damage_taken_from_type.stellar`  |
| Water    | `pixelmon.damage_taken_from_type.water`    |

### Accepted filters/parameters

| Exact field | Type / role        | Required | Example / options                                                                 | Plain-language help                                                                                   |
| ----------- | ------------------ | -------- | --------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
| `display`   | text; parameter    | No       | `Custom player-facing text; supports {value}, {percent}, {item}, and {currency}.` | Overrides the generated benefit line. Use this to conceal server-only IDs and implementation details. |
| `hidden`    | boolean; parameter | No       | `false`; choices: false, true                                                     | When true, this effect remains active but is omitted from player benefit/profile text.                |

Also accepts the six [shared choice parameters](/stellarskills-docs/readme.md) for supported skill-node bundles. Field examples are placeholders, not guaranteed live registry IDs or complete recipes.

## `pixelmon.damage_vs_type`

Native Pixelmon/NeoForge hook when the target API exposes a safe mutation point.

| Property                    | Value                                                                                                                      |
| --------------------------- | -------------------------------------------------------------------------------------------------------------------------- |
| Hook descriptor             | `battle_damage`                                                                                                            |
| Optional integration owner  | None declared                                                                                                              |
| Runtime evidence            | Native consumer/source reference                                                                                           |
| Source reference            | PixelmonHooks.java (generated type family)                                                                                 |
| Declared enabled-by-default | True                                                                                                                       |
| Probability flag            | False                                                                                                                      |
| Allowed operations          | `add_flat`, `add_percent_points`, `multiply_base`, `multiply_final`, `set_min`, `set_max`, `override`, `deny`, `transform` |
| Value label                 | Value by rank                                                                                                              |
| Value help                  | The selected operation controls how this value changes the base.                                                           |
| Schema value example        | `1.10`                                                                                                                     |

### Available effect keys

| Type     | Exact key                          |
| -------- | ---------------------------------- |
| Bug      | `pixelmon.damage_vs_type.bug`      |
| Dark     | `pixelmon.damage_vs_type.dark`     |
| Dragon   | `pixelmon.damage_vs_type.dragon`   |
| Electric | `pixelmon.damage_vs_type.electric` |
| Fairy    | `pixelmon.damage_vs_type.fairy`    |
| Fighting | `pixelmon.damage_vs_type.fighting` |
| Fire     | `pixelmon.damage_vs_type.fire`     |
| Flying   | `pixelmon.damage_vs_type.flying`   |
| Ghost    | `pixelmon.damage_vs_type.ghost`    |
| Grass    | `pixelmon.damage_vs_type.grass`    |
| Ground   | `pixelmon.damage_vs_type.ground`   |
| Ice      | `pixelmon.damage_vs_type.ice`      |
| Mystery  | `pixelmon.damage_vs_type.mystery`  |
| Normal   | `pixelmon.damage_vs_type.normal`   |
| Poison   | `pixelmon.damage_vs_type.poison`   |
| Psychic  | `pixelmon.damage_vs_type.psychic`  |
| Rock     | `pixelmon.damage_vs_type.rock`     |
| Steel    | `pixelmon.damage_vs_type.steel`    |
| Stellar  | `pixelmon.damage_vs_type.stellar`  |
| Water    | `pixelmon.damage_vs_type.water`    |

### Accepted filters/parameters

| Exact field | Type / role        | Required | Example / options                                                                 | Plain-language help                                                                                   |
| ----------- | ------------------ | -------- | --------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
| `display`   | text; parameter    | No       | `Custom player-facing text; supports {value}, {percent}, {item}, and {currency}.` | Overrides the generated benefit line. Use this to conceal server-only IDs and implementation details. |
| `hidden`    | boolean; parameter | No       | `false`; choices: false, true                                                     | When true, this effect remains active but is omitted from player benefit/profile text.                |

Also accepts the six [shared choice parameters](/stellarskills-docs/readme.md) for supported skill-node bundles. Field examples are placeholders, not guaranteed live registry IDs or complete recipes.

## `pixelmon.move_damage`

Native Pixelmon/NeoForge hook when the target API exposes a safe mutation point.

| Property                    | Value                                                                                                                      |
| --------------------------- | -------------------------------------------------------------------------------------------------------------------------- |
| Hook descriptor             | `battle_damage`                                                                                                            |
| Optional integration owner  | None declared                                                                                                              |
| Runtime evidence            | Native consumer/source reference                                                                                           |
| Source reference            | PixelmonHooks.java (generated type family)                                                                                 |
| Declared enabled-by-default | True                                                                                                                       |
| Probability flag            | False                                                                                                                      |
| Allowed operations          | `add_flat`, `add_percent_points`, `multiply_base`, `multiply_final`, `set_min`, `set_max`, `override`, `deny`, `transform` |
| Value label                 | Value by rank                                                                                                              |
| Value help                  | The selected operation controls how this value changes the base.                                                           |
| Schema value example        | `1.10`                                                                                                                     |

### Available effect keys

| Type     | Exact key                       |
| -------- | ------------------------------- |
| Bug      | `pixelmon.move_damage.bug`      |
| Dark     | `pixelmon.move_damage.dark`     |
| Dragon   | `pixelmon.move_damage.dragon`   |
| Electric | `pixelmon.move_damage.electric` |
| Fairy    | `pixelmon.move_damage.fairy`    |
| Fighting | `pixelmon.move_damage.fighting` |
| Fire     | `pixelmon.move_damage.fire`     |
| Flying   | `pixelmon.move_damage.flying`   |
| Ghost    | `pixelmon.move_damage.ghost`    |
| Grass    | `pixelmon.move_damage.grass`    |
| Ground   | `pixelmon.move_damage.ground`   |
| Ice      | `pixelmon.move_damage.ice`      |
| Mystery  | `pixelmon.move_damage.mystery`  |
| Normal   | `pixelmon.move_damage.normal`   |
| Poison   | `pixelmon.move_damage.poison`   |
| Psychic  | `pixelmon.move_damage.psychic`  |
| Rock     | `pixelmon.move_damage.rock`     |
| Steel    | `pixelmon.move_damage.steel`    |
| Stellar  | `pixelmon.move_damage.stellar`  |
| Water    | `pixelmon.move_damage.water`    |

### Accepted filters/parameters

| Exact field | Type / role        | Required | Example / options                                                                 | Plain-language help                                                                                   |
| ----------- | ------------------ | -------- | --------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
| `display`   | text; parameter    | No       | `Custom player-facing text; supports {value}, {percent}, {item}, and {currency}.` | Overrides the generated benefit line. Use this to conceal server-only IDs and implementation details. |
| `hidden`    | boolean; parameter | No       | `false`; choices: false, true                                                     | When true, this effect remains active but is omitted from player benefit/profile text.                |

Also accepts the six [shared choice parameters](/stellarskills-docs/readme.md) for supported skill-node bundles. Field examples are placeholders, not guaranteed live registry IDs or complete recipes.