An Elf and an Orc Had a Little Baby 3

Publisher's blurb:

An Elf and an Orc Had a Little Baby 3 is a...supplement that, alone or together with the rest of the series, entirely replaces chapter 2 of the Player’s Handbook. Instead of D&D’s bioessentialist approach, this title separates biological traits and cultural traits into two categories: parentage and upbringing.

To create a new player character using this supplement, players choose two birth parents and an upbringing. (Then they go on to choose a background and class, as normal.) Players can feel free to create any combination to create a unique and vibrant character.