Draconic Fury

You channel the power of dragons throughout your body releasing the energy on to those around you and send fear into those who mean you harm. When you cast this spell, you emanate a wave of draconic energy that deals 8d10 damage that reflects that of the dragon's blood or scale you use to channel the spell through and when you upcast the spell you increase the power of the spell by 1d10 and increase the range by 5 ft along with the power of the spell you gain a resistance of the dragon that you are channeling for 1 minute and if you already have a resistance you gain an immunity instead. All those inside of this spell must make a Dex saving throw and on a save they take half damage.