Booming Blade | Action

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. The target
suffers the weapon attack’s normal effects and
then becomes sheathed in energy until the start
of your next turn. If the target willingly moves 5
feet or more before then, the target takes 1d8
thunder damage, and the spell ends.