Leto, the Toolset Companion
This is hosted at NWN Vault. The link to the hosting page is Leto, v3 (SoU / HotU).
See also a rescued version at the new vault.
I have used this three times, once innocently, and twice not so innocently.
Image – Leto, Metropolitan by Richart aka Latona, photo by ad meskens via wikimedia w1080 cc by-sa