I notice how some people limits their spells. Everyone knows you can shoot fireballs and Magic missle and force shields. But those are a little too boring if you ask me. So here is what I would call a chain challenge.
I'll write a spells, what it does mechanicly.
Spirit Attack Weapon X Physical stress.
Now someone else gets to explain what this spell is, is it a magic missle? A wave of force? Get as creative as you possible can. When you are done with that, you add your own "boring" mechanic for a spell for somone else. Or for those looking for a more diffcult challange, use elements that maybe dont make too much sense? Like a Fire Block for perception (Fire veil).
In short, go nuts with your spell ideas. And lets make all the wizards out there a little more flavorful.
My spell is: Water Block X for Mental attacks