[Oversway]

Falling Frost is a great battlefield spell. For the most part it is better than Falling Fires, I think because for frost the aoe increases with magic levels where fires does not. Either that or damage.

I havn't been able to use Bone Melter very effectively. One aoe and it is not effective against etherial and I think has a magic resistance save. It has 'weird' paths to boot. Compared to most other spells at that level, not so great.

I'd say cloud spells are at their best during siege battles, when troops get clogged at the gates and stay in one place for a long time.