Acid Cyclone

A green acidic cyclone extends out from you in a 30-foot radius and vertically 50-feet. the cyclone moves with you, remaining centered on you. The radius excludes the vertical space you occupy.The Cyclone lasts for the duration. The affected area counts as half cover and difficult terrain.

All creatures within the radius must success on a dexterity saving throw or fall prone, They must repeat the saving throw at the beginning of each of their turns while they are still in the radius.

All creatures must also make a Constitution saving throw or take 6, D12 acid damage or half as much on a failed save.