Doctor in Battlebliss Arena can give special perk “Demongraft” by inserting demonic organs into you.
+2 AC (natural), +2 saves (inherent), +2 concentration, +2 spell penetration, +2 DC, +2 attack, +2 damage, enter frenzy and attack the nearest creature when health drops below 20%.
I’m pretty sure that such organs would have a completely different effect if they were inserted into the body of someone who is partly demon, or someone who is partly angel.
I don’t think that demon mythic path commander should enter the demonic rage when his health drops below 20%, because whole demon mythic path is about controlling the demonic rage. Demon mythic path is still one of the weakest, so it will be good buff it little bit by that.
On the other hand, demonic organs within a half-angelic being?
Something like that should have HUGE effect…
Even if the commander’s “spoiler power” allows him to receive power from different sources, what happens when he tries to combine two opposing powers? Honestly, the negative effect for angels should be worse.
Both make perfect sense not only in terms of game mechanics and game balance, but also in terms of game lore.