thorn cloud

Having a fist full of thorns or nails you throw them air and speak a small incantation. The Thorns wildly fly around, taring into whatever is in its effect and anyone that walks into it then has control of a bunch of tiny spiky projectiles in a 25 space. however, you can shrink the area to 5 feet with a bonus action. If you use it at higher levels, the area of effect grows by 5 feet. The thorns do 3d6 every turn that a creature is in its effect, or when a creature enters. the spell lasts one minute, after which the thorns fall to the ground.