Chained Weapon Master

You can wield a chained weapon with olympic-level skill. While wielding a chained weapon, you gain the following traits.

• Creatures provoke opportunity attacks from you if they leave the maximum range or your chained weapon, in addition to the times they normally would.
• If you land a critical hit on a creature with your chained weapon, you can roll one additional damage die and apply its damage to either the target or one other creature within a 10-foot wide line between you and the target.
• When you hit a Large or smaller creature with your chained weapon, you can us a bonus action to attempt to either trip or entangle the target. Choose either "trip" or "entangle," and then make a Strength (Athletics) check contested by the target's Strength (Athletics) or Dexterity (Acrobatics) check. On a successful "trip," the target is knocked prone and pulled up to 10 feet closer to you. On a successful "entangle," the target becomes restrained by the chain. A restrained creature can attempt to break free by using its action and succeeding on a DC 15 Strength check. While the creature is restrained, you can't use that weapon for anything else.