Arcane Blade

You brandish the weapon used in the spell’s casting and make a melee attack with it against one creature within 5 feet of you. On a hit, the target suffers the weapon attack’s normal effects and then becomes sheathed in Arcane energy until the start of your next turn. If the target willingly moves 5 feet or more before then, the target takes 1d8 force damage (your choice), and the spell ends.