Crux Anima

After being struck, the caster draws on the magical essence from the blood that has been spilled to elicit a burst of pure magical energy. Every creature within 5 feet of the caster when the spell is triggered must make a Strength saving throw, taking 2d8 force and 2d8 necrotic damage, being pushed away 20 feet in a straight line from the caster and knocked prone on a failure, or half as much damage and only being pushed 10 feet on a success.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for every two slot levels above 4th, which you can allot to either the force or necrotic damage.