You've mastered the ability to use your trusty whip and get the following benefit.

Proficiency if you didn't already have it in whips.

Ability to force a strength saving throw with a DC = to 10 + DEX if they fail you can either make them prone, or attempt to disarm them. This takes an attack and that attack has to be you using your whip. You can only do this 3 times per short rest.

As an Action (or a cunning action) You can throw a whip over an object in range, and use it to climb up said object Or attempt to swing from an object giving you an extra 20 feet of movement at max.