Eldritch Whip

You conjure an arcane lasso made of vibrant colored sparks that remains in your free hand for the duration. When you cast this spell, you can lash the whip at a visible creature within range. Make a melee spell attack. On a hit, the target takes 3d8 slashing damage.

Instead of doing damage, you can use the whip to grapple an object or a visible creature within range. A creature must succeed on a Strength saving throw or be grappled by the whip. A creature can attempt to break the grappling effect at the start of its turn by making another Strength saving throw. On a success, the spell doesn't end.

While grappling a creature or an object, you can shorten or extend the length of the whip at-will to a minimum distance of 5 feet and a maximum equal to the whip's range. On subsequent turns, you can use take another bonus action to make a melee spell attack or to attempt to grapple a creature or an object.

For the duration, you can also lash the whip defensively. When a creature makes a melee attack against you, you can use your reaction to make a melee spell attack. The attack against you fails if you roll a total equal or higher than the melee attack roll from your attacker.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the whip's range increases by 10 feet for every slot level above 2nd.