jmucchiello
Hero
Re: 1st ed: You mean because you didn't mention Dragonborn or Tieflings? Though you should make it so only HUMANS cannot multiclass. 
Or races can multiclass but must stick to a one than the other method of advancement. And then for humans, they can "dual class". Once you leave a class, you can never advance it again.

Or races can multiclass but must stick to a one than the other method of advancement. And then for humans, they can "dual class". Once you leave a class, you can never advance it again.
