A friend of mine and I are having a disagreement in regards to this spell. We decided to let others decide since we each have our own opinions and can't agree.
Total Avulsive Fracturing
Target: One Creature
Spell Resistance: Yes
Save: Fortitude partial
Dark energies cause all of the targets tendons to pull on the bones the connect to, fracturing the bones and causing excruciating pain. The target takes 1d8 points of damage per caster level and is paralyzed (this bypasses immunity to magical paralysis since the magic itself isn't causing it, rather the excrutiating pain cause by the physical trauma) until the damage is repaired by a Heal spell. A successful fortitude save halves the damage and negates the immobility.
Skeletons, incorporeal undead, elementals, oozes, or other creatures without a skeletal-muscular structure are immune to this spell.
What spell level should this spell be for Pathfinder: 6th, 7th, or 8th?
Please post your vote 1st so that it is clearly marked and then any reasoning you might have for it.