Booming Blade

Spell FAQs

Below are commonly asked questions about this spell. Some of the information is pulled official D&D sources (such as books and the twitter feeds of D&D officials), but other information is derived from forums and online discussions. As always, it is up to the DM to decide how they wish to spell questions. If you have a FAQ about this spell that you feel other DM's may wish to know, please send us the message!

Does teleportation trigger Booming Blade?

The spell states "If the target willingly moves before then,". So is teleportation willing movement? According to the PHB...

Your movement can include jumping, climbing and swimming. These different modes of movement can be combined with walking, or they can constitute your entire move. However you are moving, you deduct the distance of each part of your move from your speed until it is used up or until you are done moving.

In addition, Jeremy Crawford stated on twitter that...

When Booming Blade refers to moving, it means movement in the game's normal sense

Teleportation is not listed as a form of movement, therefore, teleportation does not activate Booming Blade.

Does standing up from prone trigger Booming Blade?

According to the implications of the Jeremy Crawford ruling below, standing up from prone does not trigger booming blade. This is because the trigger requires the target creature to move, but even though standing up costs the target movement it does not actually move the target anywhere.

Question: For Booming Blade, did you intend for standing up from prone to trigger the extra damage? It costs movement.
Crawford's Answer: Standing up costs movement but moves you nowhere. To move while prone, you crawl or use magic (PH, 191).

Can you use booming blade with Extra Attack, opportunity attacks, and other weapon attack options?

Booming Blade does NOT work with Extra Attack or any other feature that requires the Attack action. Like other spells, this cantrip requires the Cast a Spell action, not the Attack action, and it can't be used to make an opportunity attack, unless a special feature allows you to do so. [source: Sage Advice Compendium]

Can you use booming blade with a rogue's Sneak Attack

Booming Blade works with Sneak Attack if it fulfills the normal requirements for that feature. For example, if you have the Sneak Attack feature and cast Booming Blade with a finesse weapon, you can deal Sneak Attack damage to the target of the weapon attack if you have advantage on the attack roll and hit. [source: Sage Advice Compendium]