Does the Bestow Curse spell's extra damage apply to the Dragon's Breath spell?

Question

The bestow curse spell states:

[...] While the target is cursed, your attacks and spells deal an extra 1d8 necrotic damage to the target. [...]

I'm wondering how this interacts with the dragon's breath spell (XGtE, p. 154), which grants a creature you touch a new action to create a damage-dealing area of effect. Does this count as your spell dealing damage and thus activate bestow curse? If not, does this change if dragon's breath was originally cast on yourself?

Answer 1

Yes

Dragon's Breath is your spell, regardless of what creature you cast it on. It should benefit from Bestow Curse for the same reason it uses your spell save DC; It's still damage from your spell, just with extra steps.