Wondrous Item

Rare

This tiny object looks like a feather.
  You can use an action to throw the token to a point within 10 feet of you. The token disappears, and a floating whip takes its place. You can then use a bonus action to make a melee spell attack against a creature within 10 feet of the whip, with an attack bonus of +9. On a hit, the target takes 1d6 + 5 force damage.
  As a bonus action on your turn, you can direct the whip to fly up to 20 feet and repeat the attack against a creature within 10 feet of it. The whip disappears after 1 hour, when you use an action to dismiss it, or when you are incapacitated or die.