Archfeys Wrath

You softly whisper "The bone has awoken, it's heard its masters call" to a bone and embed your patrons energy in it. You can thow the bone up to 45 ft, when the bone touches the ground a 20 ft in diameter circle of purple, faintly glowing mist conjures centered from where the bone landed. The ground under the mist turns to 1 ft deep thick mud and turns the area into difficult terrain. When the spell ends, the ground turns back to its original state and the mist disapears with a bright light flash. Any creature stuck in the mud when the spell ends must make a DC 15 strengh saving throw to free itself from the ground.

Any creature that starts its turn in the area breaths in the purple mist and takes 2d6 poisonous damage. Any creature that ends its turn in the area must take a Constiution saving throw, taking 2d6 psycic damage on a failed save or half as much damage on a successful one.

 At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, both instances of damage increase by 1d6 for each slot level above 3rd. When you cast this spell using a 5th level spell slot, the radius of the fog increases by 10 feet.

This spell is so depply inbedded in you that it does not ad to your know spells amount.