You have practiced extensively with whips, gaining the following benefits:

• You have proficiency with whips.
• On your turn, when you score a critical hit or reduce a creature to 0 hit points with a whip, you can make one attack with a whip as a bonus action.
• You may use the reach of the whip for simple object manipulation or actions that do not require fine motor skills without needing to make a check, like pulling a lever, closing a door, grabbing a sword, etc.