Cloud of daggers

Cloud of daggers is a simple spell learned by some wizards early on. Upon casting by the wizard, cloud of daggers conjures a cloud of small, flying daggers of force within an area of roughly five feet in diameter, within fifty feet of the caster. These daggers will cut to shreds anything in their path, though they are weak enough that more powerful foes may be little harmed. The cloud remains in place for only a short while, a brief moment at best, but since the wizard can cast it at-will it can be reformed at any time. If a wizard grows to exceptional power, the dangerous of wading into a cloud of daggers becomes twicefold.