Oooooooh... I have been itching to watch Madoka Magica... Is the dub terrible? Or should I stick to subbed?

That's very interesting Misa, the brick wall explanation. While reweaving a standard spell can change it's effects, meddling with a Sepcarim's craft denatures it so there's no telling what the outcome would be. Hanged... This must happen at some point, and you will roll a die to decide the consequences :P