BookBarbarian
Expert Long Rester
You know, maybe there isn't any "cool D&D lore" about Goliaths, but a race of creatures that are half-angel and all evil, that God himself decided to declare war on, well man that's about as cool as it comes.
Oh a Nephalim race would indeed be cool, but I contend that the Goliath race appears to have very little relation to those giants of Hebrew legend. And D&D already has a half-angel race: Aasimar.