Sandstorm is a powerful spell but a bit of a fizzle as far as variety, creativity, utility, etc. In my opinion it would be better fleshed out with more of a concentration of reactions that would go with a sandstorm-- blindness, rubbing eyes and dropping weapons, *knock downs*, coughing/neck damage, in extreme cases even asphyxiation. I would add a Tonis effect with a lot of knock downs, probably keep the damage about the same or a bit less to be similar to like Tangleweed which is pretty close. It's more interesting with these fx and a lot more useful. Knock downs, droppage, coughing instead of attacking or parrying. It would go great with Tremors for crowd control.

Dragons r Real