A note about D&D spells with a range of "Self (XYZ)": the parenthetical—which says "5-foot radius," "15-foot cone," or something else—means you are the spell's point of origin, but you aren't necessarily its target. You're creating an effect that originates in your space. #DnD
— Jeremy Crawford (@JeremyECrawford) November 11, 2020
( still very sad that y’all nerfed booming blade to not work with war caster Booming blade works with War Caster.
— Jeremy Crawford (@JeremyECrawford) November 11, 2020
Related to this note and the new errata to spells like Booming Blade and Green-Flame Blade – does the new range of "Self (5-foot radius)" on these spells mean they no longer work with War Caster?
— DMDanDanFielding (@DMdandanfieldng) November 11, 2020
The Booming Blade spell continues to work with the War Caster feat. The spell targets one creature.
The Green-Flame Blade spell continues to work with War Caster if you forgo targeting a second creature with the green fire. #DnD https://t.co/s0p1YicLTU
— Jeremy Crawford (@JeremyECrawford) November 11, 2020
I dare not invoke the sacred emerald flame recklessly.
— Jeremy Crawford (@JeremyECrawford) November 11, 2020