I may consider that, however not for a while as I have just finished painting them to look like normal orcs. It'll also change my game style a little too much for my liking due to frenzy. Also that amount of savage orcs seems like overkill to me. I'd consider running them at 6x6 maximum including characters.
I could drop a fanatic for the earthing rod thinking about it, most of the time when they're released wrongly to me I tend to throw them into terrain to get it over and done with.
I'm also toying with the idea of making that NG shaman a level 3/4 for a larger range in spells as I do prefer the little waaagh spells at the moment, plsu will make the Magic Phase more of an issue for my opponent