Booming 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 booming 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.

This spell's damage increases when you reach certain levels. At 5th level, the melee attack deals an extra 🎲1d8 🔊 Thunder damage to the target on a hit, and the damage the target takes for moving increases to 🎲2d8. Both damage rolls increase by 🎲1d8 at 11th level (🎲2d8 and 🎲3d8) and again at 17th level (🎲3d8 and 🎲4d8).