Blunted Edge(Kobold Press)

Choose a creature that you can see within range. The target Must succeed on a wisdom saving throw or have disadvantage on weapon attack rolls. In addition, When an affected creature rolls damage for a successful attack, it must roll the weapons damage twice and use the lower total. At the end of each its turns, the creature can make another wisdom saving throw. On a success, the spell ends on the target.

At higher levels. When you cast this spell using a spell slot of 4th level or higher, you can target one additional creature for each slot level above 3rd. The Creatures must be within 30 feet of each other when you target them.

From Kobold Press Tome Of Heroes 5E