To help things along while waiting for a response from Leif, yes, we're starting at level 1, and keeping everything in terms of build options restricted to the PHB. But if I recall correctly, Tieflings are in the PHB, so you should be good to go in that regard. So far in terms of characters built, I've got a Wood Elf Ranger built up. [MENTION=6801673]Alizaar[/MENTION] is still working on his, but probably will be a Wizard or Warlock, I can't remember which