Booming Blade can do better mean damage at high levels (11+) On the other hand, Booming Blade deals the damage of one weapon attack plus 2d8/3d8 thunder damage (levels 11-16/levels 17-20) on a hit. So whenever this 2d8/3d8 is more damage than one weapon attack, the mean damage one does is better with Booming Blade.
Both Booming Blade and Green Flame Blade are exceptionally powerful compared to the other Cantrips. Only Eldritch Blast with its associated Invocations and Thunderclap (and the SCAG version of Thunderclap) can compete with them.
In general, GFB is better for pure damage as the secondary effect is more likely to trigger. Booming Blade is better for keeping someone in place, either because you have mobility to escape them or because you want them attacking you instead of someone else.
The Boom effect is triggered by movement that occurs AFTER the attack hits. Ergo they are not simultaneous. Ergo the Boom effect cannot crit. If you are playing on a grid: the target moves a square and triggers the opportunity attack, which hits with booming blade.
Booming blade can't "stack" but you can apply it directly after each other. If you bonus action booming blade, you can sneak attack and reapply booming blade via hold action IF the first instance of booming blade is gone.
Yes, you can quicken booming blade and cast it at a bonus action. (You can also twin it with twinned spell and attack two targets that are in range.) Yes, you can then grapple the target with your action.
Second, neither green-flame blade nor booming blade works with Extra Attack or any other feature that requires the Attack action. Like other spells, these cantrips require the Cast a Spell action, not the Attack action, and they can't be used to make an opportunity attack, unless a special feature allows you to do so.
No, You cannot combine attacks with booming blade. Beginning at 5th level, you can Attack twice, instead of once, whenever you take the Attack action on Your Turn.
Yes. Then you can cast the spell.
RAW yes, you can twin Booming Blade, allowing you to weapon attack two targets, in addition to the effect of the spell itself. It could be fluffed as a ghostly duplicate of your weapon arm attacking the second target.
The booming blade spell isn't intended to make the required weapon attack magical. So the weapon attack you make as part of the spell is not magical on its own.
No, teleportation doesn't trigger the secondary damage.
Misty Step is teleport, not movement. You're correct however in saying if they move afterwards they still take the BB damage. If misty step were movement, it would count against your maximum movement speed for any given turn. Willingly moving from point a to point b triggers booming blade, doesn't matter how you do it.
Spell sniper will allow you to use booming blade to hit a creature 10 feet away with a reach weapon. ... As part of the action used to cast this spell, you must make a melee attack with a weapon against one creature within the spell's range, otherwise the spell fails.
Booming Blade still works with War Caster, because it only ever targeted one creature.
Booming blade, as with all skills and abilities your players take, was chosen with the desire to see it work from time to time. An extremely subtle bubble of contracting concussive air encompassing the target; shrinking into the core of their body - it would look like a warped disturbance of light.
Yes, the combination "quarterstaff + War Caster + Polearm Master" allows you to cast Booming Blade when someone enters your reach.
Green flame Blade can't be twinned For a spell to be twinnable it needs to only target one creature. ... To be eligible, a spell must be incapable of targeting more than one creature at the spell's current level. Green flame blade is able to target two creatures; the one you attack and one next two it.
By the Rules as Written: Yes, you can. First: You can cast two spells, one being a cantrip (PHB, p. 202). Since both are cantrips, your example works. You can't cast another spell during the same turn, except for a cantrip with a casting time of 1 action.
Shadow Blade is a weapon, so it works perfectly fine with things like Green-Flame Blade. ... You can't use Two-Weapon Fighting with it, because: A. You need to take the attack action, not the "Cast a Spell" action (meaning they also do not benefit from Extra Attack).
You can quicken booming blade, and twinned spell it. ... Making two weapon attacks and stacking the effects of the spell. So if they move both spells will go off for additional damage.
The shadow blade spell creates a weapon, and the spell doesn't tell you to ignore the general rule on making weapon attacks (PH, 195). You therefore add the appropriate ability modifier.
The only mechanical uses of the the fiery blade are its unique action (make a melee spell attack, deal 3d6 fire damage on hit), and its ability to shed light. Since you can't make a melee weapon attack with it, it isn't a weapon, and thus can't be used in conjuction with Green-Flame Blade.
You add your Dexterity modifier to your attack roll and your damage roll when attacking with a ranged weapon, such as a sling or a longbow. You can also add your Dexterity modifier to your attack roll and your damage roll when attacking with a melee weapon that has the finesse property, such as a dagger or a rapier.
Yes, you can sneak attack with the attack cantrips. Shadow Blade works as any other weapon. You can do anything you can do with a regular weapon.
You can have your pact weapon take the form of a Shadow Blade (say, a long sword or rapier), but it's not magical in any way other than that described by the feature (such as being able to overcome resistance to non-magical weapons).
You can't have two pact weapons, only one at any given time, so you have to figure out under what conditions can you remove your pact weapon benefit from your rapier.
Using the second level Sorcerer spell Shadow Blade, we can create a weapon that deals 2d8 psychic damage on a hit, and, crucially, is a simple weapon, which means it also counts as a monk weapon.
Shadow Blade says: You weave together threads of shadow to create a sword of solidified gloom in your hand. This magic sword lasts until the spell ends. It counts as a simple melee weapon with which you are proficient.
I absolutely love the Shadow Blade spell, but the more I think about it, the more I realize how limiting it can be. It's a concentration spell, so good luck keeping it up in melee unless you take the War Caster feat, or just chuck it from a corner - which would also use up your bonus action reconjuring it.