In D&D 5e using a wizard of the School of Necromancy:
If I cast bestow curse on a monster, then kill it with a crossbow, would it trigger the Grim Harvest feature due to the extra 1d8 damage? Does it matter if the monster had 1 HP?
What about if I cast bestow curse, then hit it with magic missile (and kill it with just 1 missile) - would Grim Harvest trigger off the missile or the curse?