Excision

You summon arcane energy to the tips of your fingers or hand and slash towards a target within 90 feet, cutting the air itself as a slash of invisible energy converges on your target. This attack is always made at advantage and cannot be intercepted or perceived in any way expect by beings with True Sight. Upon a successful ranged spell attack, the target takes 5d6 Force damage. 

When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d6 for each slot level above 4th. When casting this spell at 9th level, it ignores resistance and immunity to Force damage.