When you attack a player with magic, for example fire wave, and he or she runs away you will follow him/her and keep casting fire wave but everytime you cast a spell the distance between you and your opponent increases, resulting in their escape.

Yes I know I made a suggestion regarding this problem a few days ago but since you (Mary and Thomy) both read it, but failed to reply I thought I'd post it here again. I hope this example clearly shows that it's a gamebreaking bug and not just a suggestion to make pking with magic easier.