Hello all,
This is an exploit for Molten WoW, and possibly other 3.3.5 servers (although not tested).
It's very simple but can be a huge advantage.
1. You must be a shadow priest.
2. Get on your mount.
3. Make sure you are in shadow form.
4. Use dispersion while on your mount.
5. Cancel shadow form while in dispersion.
There you have it. You are now invisible on your own screen but others as well.