I don't think I've ever electrified fog cloud, probably because I'm mostly casting it on my guys, it still requires some setup which I wasn't interested in, a lot of those spells require concentration too, which I was trying to avoid. Someone can double check me but some spells affect more people if upcast.
As for what stats to dump, using heavy armor, Dex isn't as necessary, and Charisma.
Shocking grasp is a good choice, especially against people with metal armor, but I think the difference between using a weapon and using shocking grasp; there isn't going to be a +2 shocking grasp of vampirism in a chest somewhere.
You know Ragnarok, we have a game that let's us put theory into practice, let's just roll two Gish and see how well they turn out
