"It would depend quite a lot on the god - they vary a lot in how powerful they are, and in what tactics they prefer. Fharlanghn in particular doesn't really have an organized church or dedicated following, so mostly what you'll see is individual clerics handling whatever part of the problem they feel capable of solving - by diplomacy, often, but also directly rescuing slaves or sabotaging slaving efforts, warning travelers including traders of problems in the area, that sort of thing. Obad-Hai doesn't have many lay followers, either, but his druids are much more organized and tend to be quite magically powerful; most duid circles can fairly easily level a city, if they really want to, though it's very rare for things to get to that point - I'm not sure it's happened in my lifetime, anywhere in the world. I'd expect you to end up allied with Ehlonna, here - the goddess of living in balance with woodlands - and she's very inclined to diplomacy, and mostly withdraws if she's seriously challenged, though she'll defend specific holy sites, usually with magic."