Bone Wall

You point to an unoccupied space within 30 feet of you and create a 10 foot wall of bone. The wall appears to be the bones of many creatures both large and small with sharp splintered bones jutting out in multiple places.  The wall can be straight or bent at 90 degrees. It can be up to 10 feet tall and 3 feet thick.  

The wall has an AC of 14 and HP of 13 per 5 foot segment. Anytime a chuck of the wall is destroyed any creature within 5 feet must make a constitution saving throw or take 2d6 necrotic damage. 

At higher levels the wall increases by 1 segment and it adds 1d6 necrotic damage for every level above 2nd. Above 6th level also applies the poisoned condition on a failed constitution saving throw.