Sorceress in Hell. PvM FO/CM

[Vash]

Might I suggest Chain Lightning. Despite the fast cast bug associated with CL (CL cast speed is based on your sorc's attack speed, not cast speed! Talk about bad copy-paste code jobs!), it's still an awesome skill. Put a few points in it and cast it on a big crowd. You'll fall in love with it like I did :D