you little WoW player you #-o To tell the truth, I have never played WoW. Not a single second. I played Diablo II though. Heh, what you just discribed is almost exactly the same as the Enchanting skill in WoW :P
Support. Using the rocks to get away with your own flag is a huge part of a castle wars team strategy, so slowing it down really takes alot out. Noob Jagex.