[Ironhawk]

Thunderstrike is powerful... agaisnt 3 units. Which is all you can hit with AoE 1. And with 50 fatigue you wont be casting it that much.

Hurricane is a good spell and I will likely use it - but it has nothing to do with battlefield magic.

You make some good points, but none of it addresses the fact that air magic is weak in dom3. And particularly so for Caelum since it relies on it so heavily and its troops are on average worse than normal (supposedly a trade off for flying).