This pack provides a template that can be used to introduce the undead spectre into your campaign. The folder includes a creature blueprint, which appears under the Undead tab. This blueprint uses the standard creature statistics from the SRD (external link); some of which are implemented via custom hide and slam weapon items. A visual effect is used to create the diaphanous form of the spectre, accompanied by a faintly glowing haze.

To add the invisible stalker to your toolset, just drop the folder in your local override directory. The effect files will need to be added to your campaign hak file.