Needs balance. Some things are worth a lot more in terms of strength and usability than others.
It's probably because I suck but I just can't get anything to kill mages except horses.
@Wubbelz: Of course it's unfair , that's the fun of it. It's meant to be cruel and it succeeds. The cruelness is funny. the only times it's annoyed me is when I thought I was being tricked and i wasn't.
In my opinion I like the concept but I think it might be more entertaining if when you click on something you only get tugged in that direction instead of the rope pulling you in . I've played it quite a lot and to me thats whats missing.