Becoming a mythic equals becoming a tiefling (aasimar if you like)

[LirkaTrend]

So, there I was playing bound by flame on my PC (it's not 'game of the year', but it's fun... in it's own way), and one of the main conflicts of the game was that the protagonist during the first hour of the game has been posessed by demon of fire. Giving the power to cast fireballs... and growing the horns and tail as a side effect.

So let's say your character have gotten the mythic tier of infernal or celestial origin... The catch is that with the progression in mythic levels your character would become an asimar or tiefling instead of the curent race.
It doesn't sounds too horrible, does it?

[ShadowcatX]

Yes and no. If you allow the ful customization options available to the planetouched I wouldn't mind, but if you stuck me with just the base I wouldn't be happy.

However, I don't see a large gain by doing this either.

[Artoo]

If you wanted to do something like that I think a better way would be to apply an appropriate template, like Fiendish or Celestial.