I try to save the explanations (because good writing should explain itself...) but just in case I haven't been able to do that, I want to explain the updates to your quirk!

Starting with your parents! Lol!

The Butcher - with every kill he becomes stronger physically by stealing the victims life force. He never stood a chance as a hero honestly - and his backstory is quite sad, of course.

Hellia - can bewitch others through touch. Her aura is alluring already as she is quite beautiful but chose the wrong path and became a dark sorceress.

You are a combination of the two. Through touch, you can become powerful but only in short periods. Unless you kill someone, your powers aren't permanent. Your mother also gifted you with beauty and now more bewitching magic. Since your upgrade, you can influence people's emotions without touch and just by being close to you.

That's it for now! :)