As two actions, a swirling cloud of sand swirls through the air in a sphere centered on a point within 20 meters. The cloud spreads around corners and is heavily obscured. It lasts for the duration or until a wind of moderate or greater speed (at least 15 kilometers per hour) disperses it.
A creature that enters the spell’s area for the first time on a turn or starts its turn there must make a Fortitude saving throw.
On a failure, it takes 2d4 slashing damage and is blinded until the end of its next turn.
On a critical failure, it takes twice as much damage.
On a success, it takes half as much damage.
On a critical success, it takes no damage.
As an action, you can cause the cloud to move 2 meters in a direction that you choose at the start of each of your turns. As an action, you can stop the cloud from moving if it is within 20 meters of you.
You can increase the damage by 1d4 for each additional mana expended.
You can expend 1 additional mana so duration changes to 1 hour/mana.
Massive Sandstorm. You can expend 3 additional mana to create a 200-meter radius sphere at a point you can see within sight range. Sand and gusts assail the area. The area is difficult terrain and is heavily obscured. Ranged weapon attacks in the area are impossible. The wind and sand count as a severe distraction for the purposes of maintaining concentration on spells. Gusts of strong wind (at least 30 kilometers per hour) automatically disperse fog, mists, and similar phenomena in the area, whether mundane or magical.
The damage is reduced to 1d4.