While holding a scroll of frostbite Touches the ground around their fingers everything begins to freeze in a radius around the caster every round at the start of their turn the radius increases by 10ft (or 20ft on a wet surface) The ice is difficult terrain and every creature in the radius takes 3d6 cold damage every round at the start of their turn the spell ends when the caster stops touching the ground or has their concentration broken after the spell is stopped the ice stops growing but still fills the radius until melted or destroyed