Bolas trip

A Large or smaller creature hit Bolas is knocked Prone until it is freed. The Bolas has no Effect on creatures that are formless, or creatures that are Huge or larger. A creature can use its action to undo the Bolas, freeing itself or another creature within its reach on a success. Dealing 5 slashing damage to the Bolas (AC 10) also frees the creature without harming it, Ending the Effect and destroying the Bolas. When you use an action, Bonus Action, or Reaction to Attack with the Bolas, you can make only one Attack regardless of the number of attacks you can normally make.