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

# Placeholders

Nebula uses placeholders from PlaceholderAPI for effects and conditions. You can use them as parameters or part of parameters. They will be replaced during the condition/effect processing. You can install more expansions that these required by Nebula to work to create new condtions/effects.

## Enemy placeholder

Nebula implements a way to use enemy placeholder in effects/conditions.

While the default placeholder uses the defaut placeholderAPI mark (**%**) to get values related to the player, the enemy placeholder uses **@** mark to get values related to the enemy. This will work only if the trigger is related to an enemy (see [triggers](/nebula/main-mechanics/triggers.md)) and the enemy is a player.

{% hint style="danger" %}
Don't forget to install PlaceholderAPI expansions before using placeholders from these expansions
{% endhint %}