Adran's Swirling Sandstorm

A 30-foot-radius sphere of whirling sand springs into existence centered on yourself. The sphere remains for the spells duration. Anyone inside the sphere has reduced visibility of 5 feet and takes 3d8 slashing damage from the sand. Anyone in the sphere must make a CON save or be blinded until their next turn.  The caster does not take damage or get blinded but does have reduced visibility. Creatures can exit and enter the spell's area by making a CON save.

In addition, as a bonus action, you can choose a target inside the sphere. The winds strengthen and the target must make a CON save or be stunned until your next turn as the air batters them.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 and the area increases by 10 ft for each slot level above 5th.