These small creatures are barely a threat singly but always appear in hordes. Each carries a jagged steel shard used as a dagger. Sliced open they drop coins.
These fellows showed up here, but they're kind of buried in the post play narrative. In making my index I realized they would benefit from a post of their own. They're basically re-skinned kobolds. But the secret sauce is that cutting them open drops coins. Get enough of these swarming around a party to make them nervous, wait until they realize the little devils are dropping treasure, then watch in amusement as the party teeter totters between greed and fear trying to decide when to retreat.