Ovinomancer
No flips for you!
Sorry, but are we trying to understand how evolutionary forces and the unlikelihood of multiple intelligent species developing in parallel in the same biosphere is applicable to a pretend-elf game with magic and dragons and actual heavens and hells? I get that everyone has their buttons, I'm just wondering how it is you got past dragons flyiing, magic in general, pantheons of gods existing, the outer planes, even flumphs, to land on 'hey, it seems against our modern understanding of the development of intelligent species and available biosphere resources to have multiple intelligent species codevelop' as your suspension of disbelief breaker. 
