> For the complete documentation index, see [llms.txt](https://docs.uci.ucserver.it/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.uci.ucserver.it/uncomplicatedcustomitems/archive/uci-4.0./customflagsettings/effect.md).

# Effect

{% hint style="danger" %}
This is archived all will not work on the latest version.\
Archived version: 4.0.\*
{% endhint %}

**Description:** Applies a game effect when the item is used, with control over intensity, duration, stacking, and clearing on unequip.

**Parameters:**

* `effect_event` — The event that triggers the effect (`EffectWhenUsed`, `EffectShot`, or `EffectWhenEquiped`).
* [`effect`](/uncomplicatedcustomitems/api/enums/external/effects.md) — Which effect to apply (e.g., `Flashed`).
* `effect_intensity` — Intensity/strength of the applied effect.
* `effect_duration` — How long the effect lasts (seconds).
* `add_duration_if_active` — If `true`, adding the effect while it’s active increases the duration instead of replacing it.
* `clear_on_unequip` — If `true`, effect is cleared when the item is unequipped.

**Example Yaml context:**

```yaml
flag_settings:
  effect_settings:
  - effect_event: EffectWhenUsed
    effect: Flashed
    effect_intensity: 1
    effect_duration: 1
    add_duration_if_active: true
    clear_on_unequip: true
```


---

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