Azura's Soul Whip

You create a shining black whip of magical force that lashes out at your command towards a creature in range. Make a Melee Spell Attack against the target. If the attack hits, the creature takes 6d10 necrotic damage and, if it is Large or smaller, you pull it up to 10 feet closer to you, receiving temporary hit points equal to half the damage inflicted.

Every turn thereafter, you can use your action to crush the Soul Whip against the target, dealing an additional 2d10 necrotic damage and pulling it 10 feet closer to you.