Ok if you have a bow with Dex and HIT and a damage roll is made. If you are allowed to do damage in this case (not immune to non-magical weapons).
1 for roll + 3 for dex = 4 BASE
Applying the following 5e rules:
Damage resistance cuts in half = 2 damage
Bard cutting words = -d6 or more damage depending on level of Bard.
Heavy Armor Master (feat), it reduces the damage by 3. So you would get a 1 in that case.
There are racial and class effects which also reduce damage, but so far that class/race is not in play. (Half Orc) if reduced to 0 reduce to 1 instead. So if character would have died from taking more than 1, it takes 1 instead. Barbarian spirit shield (not currently in play)
