Mordenkainen's Lost Notebook
4-level Enchantment
Choose an area the size of a 30-foot cube within range. Creatures of your choice within the area must make a Wisdom saving throw or have disadvantage on Dexterity ability checks and saving throws for the duration. In addition, when an affected creature makes an attack roll with a hand-held weapon and misses the attack by 5 or more, it drops the weapon in an adjacent space. An affected creature can try a new saving throw at the end of each of its turns, ending the effect early on itself with a success.