Hero Realms: Ancestry - Rules of Play says:
The 20-card Ancestry pack allows you to play Hero Realms as a Dwarf, Elf, Ogre, Orc, or Smallfolk. You may use any race with a generic starting deck, or combine them with any character pack. So you could play as an ogre wizard, an elven ranger, a dwarven fighter, or any one of the 30 new race/class combinations.