say something gets away from you with a little bit of hps or if you just want to get ride of an anoying little mob or mess with other players,you would cast death hunter and it would summon an x number of mobs i was thinking something like the ims off of 300 and the number summoned would depend on your qulity but anyway after you summon them they would hunt the target that you specified and attack them but you can not see what direction they leave and you cant follow them.