Touch of Ice

Your hand glows white-blue. Make a melee spell attack against the creature to assail it with a chill. On a hit, the target takes 1d8 cold damage, has its speed reduced by 10ft for the next three rounds, and it can't regain hit points until the start of your next turn. The speed penalty does not stack with itself or other speed penalties. This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).