Complex sentence: Very few power users are born with supernatural powers while most are ordinary people who have the potential to develop them; participating in Academy City's Power Curriculum Program is one means of developing psychic powers for ordinary people with potential.
Split into simpler sentences: Very few power users are born with supernatural powers while most are ordinary people who have the potential to develop them. Participating in Academy City's Power Curriculum Program is one means of developing psychic powers for ordinary people with potential.