Verdant Decay

Corrupts an area of natural terrain, turning it into a decayed, hazardous zone. Plants within a 20-foot radius of a point she chooses wither and die, and creatures in this area have their speed halved. At the start of each creature’s turn within the area, it must succeed on a Constitution saving throw or take 4d6 necrotic damage and suffer disadvantage on Constitution saving throws until it leaves the area.