The first entry in this art contest is from Furmistress.
A great little pen and ink piece.
"The story here is that the evil little cat decided that that grumpy construction worker needed a little ah... modification, and *BOOP* suddenly, he's changing! As you can see, the cat is disinterested in the despair of our poor construction worker. It even takes a bath! But once she's all changed, he's quite self-satisfied. Now he has the perfect witchy companion!"
You know after looking at your not-quite-self-insert superheroine, seeing how their powers work around a constant expenditure of their built up energy... How about something like Joule for a name? It's not only a unit of measurement in relation to energy, but also a homophone for gem puns as well as energy/electricity puns, so there's that, too.
3 hours ago