Subjugator

You’ve developed the ability to manipulate those you hold captive in battle. You gain the following benefits:

• When a creature targets you with an attack, you may use a reaction to force the attack to target a creature you are grappling instead.
• You have advantage to maintain your hold on a creature you are grappling when they attempt to break the grapple. 
• When a creature leaves your reach and would provoke an attack of opportunity, you may use a reaction to attempt to grapple them instead of attacking.