Circle and ring don't have to be literally "circles"?

Yes, you are right. I was after night shift and my original post was with ring and circlr not individual but I just realised the core of this whole argument after I posted. Anyway instead of an indi target, a circle would create as many dead corpses as big as the surface of the ring? Or just one amorph dead peace of meat just to fill the circle?

Contributing to the original topic. I also dont think that a circle target could be used for other shapes rather than circle. And in this case IMHO the circle should very much resamble a real circle, obviously it should not be perfect. For that there is math magic (hermetic geometry)

No, you can't use a circle for creo to make something. The target of creo is the thing being created so circle can't specify that.