> For the complete documentation index, see [llms.txt](https://enchantedmobs.superiormc.cn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://enchantedmobs.superiormc.cn/for-enchantmentreform/configs/power-modifiers/projectiles.md).

# Projectile Modifiers

Every modifier on this page is documented independently. All entries also support the common modifier fields from the [Power Modifiers](/for-enchantmentreform/configs/power-modifiers.md) page.

## Registry keys on this page

* `modify_projectile`
* `replace_projectile`

***

## `modify_projectile`

**Purpose:** Edits the current projectile in place.

**Context:** Uses projectile `SKILL`, falling back to projectile `TARGET`; normally used on shoot, launch, or projectile-tick triggers.

### Fields

| Field                   | Default   | Description                                                                  |
| ----------------------- | --------- | ---------------------------------------------------------------------------- |
| `speed-multiplier`      | `1`       | Multiplies current velocity.                                                 |
| `draw-speed-multiplier` | unset     | Scales velocity relative to captured bow force when available.               |
| `spread-degrees`        | unset     | Random X/Y angular spread.                                                   |
| `accuracy`              | unset     | Blends direction toward source living entity look direction; clamped `0..1`. |
| `gravity`               | unchanged | Enable or disable gravity.                                                   |
| `fire-ticks`            | unchanged | Set projectile fire ticks, minimum 0.                                        |
| `damage-multiplier`     | `1`       | Multiplies `AbstractArrow` base damage.                                      |
| `critical`              | current   | Sets arrow critical state.                                                   |
| `pierce-level`          | current   | Sets pierce level, clamped `0..127`.                                         |

### Example

```yaml
type: modify_projectile
speed-multiplier: 1.25
spread-degrees: 3
gravity: false
damage-multiplier: 1.5
pierce-level: 2
```

### Behavior and limits

* Absent options leave their property unchanged, except neutral speed/damage multipliers.
* `accuracy` aims along the shooter's look direction, not directly at `TARGET`.

***

## `replace_projectile`

**Purpose:** Removes the current projectile and replaces it with TNT or another projectile type while preserving core motion and ownership.

**Context:** Reads the old projectile from `SKILL` or captured projectile context and writes the replacement as the new skill entity.

### Fields

| Field                 | Default  | Description                                                      |
| --------------------- | -------- | ---------------------------------------------------------------- |
| `projectile`          | required | `TNT` aliases or a spawnable Bukkit projectile type.             |
| `fuse`                | `40`     | TNT fuse ticks, minimum 1.                                       |
| `fireball-yield`      | `1`      | Yield for fireball replacements.                                 |
| `fireball-incendiary` | `true`   | Incendiary state for fireballs.                                  |
| `potion-type`         | unset    | Base potion type for thrown potions.                             |
| `potion-effects`      | unset    | Custom potion effects with `duration` (100) and `amplifier` (0). |

### Example

```yaml
type: replace_projectile
projectile: SPLASH_POTION
potion-type: HARMING
potion-effects:
  slowness:
    duration: 80
    amplifier: 1
```

### Behavior and limits

* Velocity and gravity are copied to projectile replacements.
* The captured living source becomes shooter.
* Replacing with a projectile transfers tracking; TNT/non-projectile replacement ends projectile continuation.
* TNT velocity is multiplied by 1.2.

***