Treacherous Domain

The terrain in a 60 feet radius transforms into difficult terrain for everyone except the spell caster. If the spell caster is not in the area for more than 1 minute (this also applies if the spell caster is not grounded), the spell automatically dispels. When the spell is casted, the ground quakes and everyone grounded in the area takes 2d4 force damage. When the spell is dispelled, the ground quakes and everyone grounded in the area takes 2d4 force damage. If target succeeds at a dexterity saving throw, they take half damage. The target may willing fail the dexterity saving throw.