Chou-Zhen Mou:
Shape Air is a "Regular" spell, which means range of "touch" -- you move the air you can touch, either with your hands, or a Staff spelled object. Even at maximum fatigue cost of 10, it's more like a high velocity fan than a weather alteration spell. You want something like Clouds, Wind, or Storm (M194-195) to affect full size weather phenomena without killing levels of energy cost.
It's way more than that. It does 1d per 2 energy in
Knockback damage. It also starts where you're starting it (end of hand, esng, staff, or at a distance -1 per hex away) and continues with a 1 yard wide, 5 yards x energy wind stream. So at full blow (10 energy) that's a 50 yard corridor of air pushing everyone an average of 2 hexes per round for a full minute.
It really is "create wind".
It's good as an 'area denial' spell. I've also seen it used with the Throw Spell to create "wind stream" grenades (to knock that villain off the top ledge that you can't reach).
[EDIT]
You are correct, it's not a weather alteration spell, but far more than "a strong fan"... unless were talking about those windstream fans they use for testing aerodynamics or indoor winggliding...
[/EDIT]
This message was last edited by the player at 19:55, Wed 20 Jan 2021.