Entropic Needle

You magically summon a tiny grey needle that flies toward a target within range. Make a ranged spell attack against the creature to reduce its energy. On a hit, the target takes 1d8 force damage, and its movement speed is reduced by 10 feet until the end of your next turn.

Cantrip Upgrade. The damage increases by 1d8 when you reach levels 5 (2d8), 11 (3d8), and 17 (4d8).