Cellion wrote:One of my other (mostly rhetorical) questions is how smart is "to the best of its ability" supposed to be? Say there are two enemies. Would three 5ft squares of the cloud move to hem in one of the enemies so they can't guarded step away to get out of the cloud? Or would they split evenly? This is obviously 100% up to the GM right now, but it makes the spell vary wildly in usefulness, especially for the covering fire portion.Since you can't directly command them once loosed and they don't have much intelligence, they would split up as evenly as possible. Two clouds after one target, two after the other target. In the case of three targets, the fourth "undesignated" cloud segment would either move towards the closest one or roll randomly to determine which of several equidistant targets it moved toward.
Actually, there's nothing in the spell that suggests they're not intelligent. In fact, since they're not only able to discern 'hostility' and are completely autonomous beyond you sustaining them with magic each round, it seems like they're at least slightly intelligent.