This spell is similar to the MINOR WOUNDING. But, it affects an area and the duration is changed. It still uses the wounding effect.
Anyone that is in the zone might be affected during the duration of the MHW. The duration is 1 round per level. For the wounding effect, its dura- tion is still 10 rounds. It is possible to have multiple saves to do (and multiple woundings) as long as the creature is in the area of effect.
The material component is a dagger that is at least +1.