[@Shard] Well, that's a complicated topic.

Metahuman abilities come from the titans interbreeding with mankind thousands of years ago. From this union came demi-titans, who went on to further mix with mortals. Fast forward to 2000 AD, and the return of magic begins to agitate the long dormant titan DNA that is present in about five percent of the human population.

As for who the titans were, that's a bit of a story I'll elaborate on in the main thread. Suffice it to say, they're immensely long-lived and powerful beings tasked with overseeing life-bearing planets. Some, however, lose their way and think themselves Gods, and toy with the lives of mortals as they see fit.