Currently, in order to cast stormhammer at multiple denizens of the same type, you have to specify them with their numerical IDs--otherwise, the spell just attacks the first one in the room (which would be totally fine if it attacked that target multiple times). Targeting the spell quickly enough to make it a viable hunting tool requires some pretty complicated scripting, as far as I can tell, because unlike other hunting abilities it requires unique identifiers for each target.
Could stormhammer be changed easily so that it automatically looks for new targets if multiple targets with the same name are specified? For example, if a room has thug123, thug456, and thug789 in it, and you CAST STORMHAMMER AT THUG AND THUG AND THUG, it would recognize that you wanted to target the first three thugs in the room, instead of the first thug in the room three times?
If there are any other abilities that target multiple denizens with a single command, they might also benefit from this treatment.