Eldritch Whip

You create a red-hot whip that magically binds you to a targeted creature. Make a ranged spell attack, on hit you will deal 1d6 fire damage and 1d6 piercing damage. When you hit a creature up to one size larger than you, you also restrain both it and yourself. At the end of the creature's turn it can make a Strength check against your spell save DC, on success it breaks the whip. Alternatively it can use its action to break free with the same check, or with advantage if you didn't use an action to maintain a steady grip on it.

When casting this spell using a spell slot of 2nd-level or higher you create 1 additional whip for every level above 1st. You make a ranged spell attack like normal, or with advantage if you have already 1 whip attached to the creature. When the creature uses its action to break free it can break multiple whips for every 5 points it rolled above your spell save DC.