Summon a demonic force that shields caster from attacks as long as the caster is concentrating. When released it retaliates with dark energy towards the nearest target. If no other target is within range, the caster will take the damage.
Shields caster for 5 damage pr. hit.
When released, the demonic force will attack the closest target within 10 meters of the caster for 1d6. If no target is within range, the force will attack the caster.