Arelith

As the assassin class has in the poisons one of their strengths and traditional feat...

Add the chance to create poisons to those assassins who increased alchemy crafting.

Those two requisites:
* To be assassin (the level as assassin will also unblock stronger poisons. The DC of the poison may be = assassin level)

* To be alchemist: the DC of the poison may be = to the DC to craft it.

http://www.nwnlexicon.com/index.php?title=Poison

Regards

If poisons aren't already craftable via cooking, they should be - please raise a separate suggestion for that. (It may only be possible on FL, but if so, I see no reason not to move it across).