If I have the Polearm Master feat and am wielding a +1 Glaive, the bonus action attack will use the same modifier as the standard attack (STR). However, does it also receive the +1 bonus from the fact that the weapon is magical?
Personally, I'd think that the full weapon is magical (not only the cutting part), so indeed the bonus attack gets a +1 as well. But in my DnDBeyond character sheet, the bonus attack does not include the magical bonus. So I wonder if this is RAW or a bug in DnDBeyond.
Best Answer
All attacks with the weapon receive the bonus to attack and damage rolls.
The description for +1 weapons says (DMG, pg. 213):
This does not discriminate between attacks made with the Attack action and attacks made via a feature granting a bonus action, or any other distinctions we might make, so all attack and damage rolls receive this bonus.
If DDB is not adding the +1 to the bonus action attack, this is indeed a bug. You can work around this by customizing the bonus action attack in DDB to have a +1 bonus to attack and damage rolls.
I've added a Glaive +1 to my character Poley McPoleface, and I've run into the same problem. The workaround is easy enough, see this image: