>>715069356From what I understand, MC didn't get powers from two apostles. Your choice at the start of the game determines whether Body or Memory infect the MC. He gets powers from one of them.
But he already has monster genes in him of both Body and Memory (and a little bit of something else, so its not a perfect 50/50 split). MC was meant to be a perfect hybrid vessel for Body and Memory, but Syla fucked it up by getting the treatments to become human. Thats (partly) what makes him so special. Not that he's infected by both Body and Memory.
As for why he has both Body and Memory powers, its one part having nearly perfect 50/50 traits of theirs in this genes. And the other part is that when you're infected by an Apostle, you can access the powers of its twin Apostle. So, for example, all Body superhumans can use a bit of Memory, and all Memory superhumans can use Body. Thats why Ella had/has Memory powers, even though she was a Chosen of Body.
(Jake can use Power, if he trains.)
Also, MC is not unique in the 50/50 perfect hybrid thing. Henri is hinted at being the same, but even specialer. He traits are form the Apostle twins Fantasy and Truth, which is why he's got insane reality warping powers.