Chilling Rend

Frost wreathes your chosen weapon as you strike, and its impact leaves a chilling bite. Make a melee attack against one creature or object within 5 feet of you. On a hit, the target suffers the weapon or attack’s normal effects, and their speed decreases by 15ft until the start of your next turn. During this time, they may not benefit from effects which protect them from attacks of opportunity such as the disengage action or flyby. Other effects granted by such abilities still apply (such as increased movement speed etc.)

This spell’s damage increases when you reach certain levels. At 5th level, the melee attack deals an extra 1d8 cold damage. This cold damage roll increase by 1d8 at 11th level (2d8) and 17th level (3d8).