Rope Trickster

You've mastered the use of whips, ropes, and lassos. You gain the following benefits: 

• You gain proficiency with whips if you aren't already proficient with them, and they gain the light property for you.
• You can use a whip, rope, or lasso you are holding to attempt to grapple one target within 10 feet of you. If successful, you can immediately use a bonus action to force a creature to make a Dexterity saving throw against a DC equal to 8 + your Dexterity modifier + your proficiency bonus.  On a failed save you cause one of the following effects:
• Disarm. One object worn or held by the target either drops to the ground within 5 feet of them, or you may choose to pull the object to an empty hand.
• Trip. You knock the target prone. The target has advantage on the save if it has more than two legs.