Chill Touch

D&D 2024 spell: Chill Touch. Source: Player's Handbook (2024). level 0, school Necromancy, casting time 1 action, range Touch, duration Instantaneous

Channeling the chill of the grave, make a melee spell attack against a target within reach. On a hit, the target takes 1d10 Necrotic damage, and it can't regain Hit Points until the end of your next turn.

At Higher Levels

Cantrip Upgrade The damage increases by 1d10 when you reach levels 5 (2d10), 11 (3d10), and 17 (4d10).

Source: Player's Handbook (2024), p. 249 - Licenses and attribution