Arcane chains

You create a lash of arcane energy that strikes at one creature of your choice that you can see within range. The target must succeed on a Strength saving throw or grappled and take 4d8 elemental damage you choose from either Lightning, cold, fire, poison,acid, thunder or necrotic (4d8). while grappled you can use an action to deal the damage to that target an as a bonus action pull them 15 ft towards you. this can trigger opportunity attacks.