Dark Force (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Components:||V, S, M (a black pearl worth at least 50 gp)|
A mysterious black orb appears in the center of a point you choose within range, which then crackles and rapidly expands to fill a 10-foot radius sphere. Each creature in the area of the sphere must make a Dexterity saving throw. A target takes 2d6 force damage and 2d6 necrotic damage on a failed save, or half as much damage on a successful one.
At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level above 1st. You may choose to increase either the force damage or the necrotic damage by 1d6 for each slot level above 1st.