Eris closed her eyes and focused on her divine magic. If she couldn't do anything about her link with Amaterasu, what about the divine portfolio nestled deep within her soul?
What about Murder? What is it really, and how could she control it? To understand that, she must define Murder first and then single out its true essence.
Murder is the unlawful, premeditated killing of one human being by another. Achieving the premeditated should be easy, unlike the unlawful one. Eris kills a lot, but usually, laws have nothing to do with what she did.
But that's the point. It's unlawful, not unjust or unfair. Meaning that no matter how vile or good Eris's enemy is, as long as she can find a law that says they shouldn't be killed, she could technically murder them and get power.
There are two more meanings that Eris can use to understand how Murder works. The first is that Murder could be used as a word to describe being very angry with something or someone, even punishing them severely.