[thejeff]

I'll stand corrected on the booster spells. And keep an eye out for them.

I suspect you don't see the Air and Water ones unscripted often just because of the circumstances.

Wall of skeletons is great when you're planning on it and have critical mass. When you only have a couple of death mages and they're spamming it instead of casting Dust to Dust on the Banelord...
The other spammable summoning spells are pretty worthless.