The Crest of Darkness
The Story Behind the Crest of Darkness
The power "Darkness" appeared about the same time as the Light and the Rulers appeared. Some powers were forbidden to be researched by the Rulers. But there were people hated to be limited, so they kept on researching them. Since they had to do the research in the dark, they named the power "Darkness".
One key point is that, Darkness does NOT equal Evil, but its research is not forbidden for no reason. These powers tend to be powerful and irreversible (like nuclear bombs for now). And since it's so powerful, it becomes the first thing the Evil wants to get, and most of the time, they did. As time went by, people started to equalize these two.
In contrast to other power, everyone can active the Darkness power, but not everyone is able to handle it. (For other powers, only those who can handle the power can active it.) And if you let someone who can't handle the power use it, it spells disaster. The researcher sealed part of the power into a device,