okay after a few hours trying to remove able learner for FS (I know) and fail to do it.
I come up with this build http://nwn2db.com/build/?262741
in the end I was out of options so I throw random feats to fill them up
armor specialization and proficiency = armor skin 2 and 3 and elusive archery
3 skill focus of hide move silently concentration
I am open for more suggestions thank you
about drow sling I don't think any of my character is up to challenge will look in trade center
one thing I can do is to move int to 16 and use it for spell craft to have better saves against spells but I was not sure if it's a good idea tbh