Dungeons & Dragons has two types of druids ... to wield the power of nature to cleanse the land of evil. A Circle of the Land druid is definitely in the latter camp. Reveal a monster's dirty ...
In the world of Dungeons & Dragons ... a circle of spores druid re-skinned as a cleric would be a great pick, too. If you want a more popular evil god, this one is as good as it gets.