Source: Player's Handbook

1st-level necromancy

Casting Time: 1 action
Range: Touch
Components: V, S
Duration: Instantaneous

Make a melee spell attack against a creature you can reach. On a hit, the target takes 3d10 necrotic damage.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d10 for each slot level above 1st.

Spell Lists. Cleric