Bullywugs

Bullywugs are a primitive race of frog-like humanoids found throughout the bogs and marshes of Toril, the self-proclaimed lords of the swamp. Savage and self-destructive, the bullywugs regularly tamper with forces beyond their understanding, threatening the safety of others and their own brutish, noisome, and wet lives.
Bullywugs are foul inhabitants of the natural world both in smell and company, constantly hungry savages often completely lacking in higher emotions and feelings. Unlike many other creatures of the wild, bullywugs either don't understand or don't care about the effect they have on their own ecosystems. They hunt and kill for sport without the intelligence or discrimination to allow environmental recovery, and so systematically deplete the natural resources of their own habitats.
Rather than fill any ecological niche, these habits make bullywugs a disruption and threat to the fragile balance they themselves rely upon, and after exhausting other food sources, they either move on to greener pastures or turn to cannibalism (although some were cannibals by choice). While they don't permanently poison the land like the undead, the effects of bullywugs left to their reckless practices is nothing short of disastrous for a few years, as they strip acres of land bare and leave behind a despoiled morass of mud, a mere echo of a once fertile swamp.
The bullywugs are not unaware of this phenomenon, the difference in environment before and after they enter being so noticeable that even they view their own presence as "off" somehow. This sense of something being wrong manifests as paranoia, the sense that everything is out to get them somehow, although this feeling is not exactly untrue. Those that struck the scourge of bullywugs with particular precision or power sometimes felt a moment of renewed strength or clarity, as if the natural world itself is thanking them for their service.
Bullywugs are, appropriately enough, bullies, and often their greatest joy comes from lording over trespassers in their domains. They believe themselves to be the true lords of the swamp and behave as such, being known to laze and loaf even as others work. They prize coins, jewels, and other treasures, although as individuals they lack the same kind of greed and megalomania found in marauders like orcs. Infighting within the same group almost never occurs, though some will suggest this is due to a lack of brainpower rather than malice. Regardless of the truth of that idea, bullywugs are easily confused, the smartest of them normally being of about average human intelligence.
Commonly Known Languages: Bullywug.