Pardon me for being intrusive, but [i]how[/i] is Silver accepted? 

Her mother [i]burns to ashes[/i] upon giving birth (I just checked, that part is still there), and that wouldn't be possible given the fact that Magic only returned in 2016. There is also no reason for that "Witch" to know anything, and we know that she didn't possess magic. Not to mention her ability to destroy a disease with heat alone would take an insane degree of control, something which I doubt even an Other wouldn't have after only a month. Not to mention that it would boil her own blood and kill her. Being resistant/immune to fire on the outside of her body is reasonable because there's something that would protect her, but inside her body she should boil herself alive if she tried to remove a disease with heat. 

Going by Thermodynamics, even if she can control her ability to such a fine degree as to make it possible, the heat would still spread and affect her body when trying to cure herself from a disease. 

As for you, DragonBeast. A Background is as important as what will happen in the RP. The reason for that is because the Background is what defines your character; it's what explains who your character is, what they do and why they do it. Lily Strider (my character) is a kind person with little hate or anger in her because she lived a rather peaceful life. She's a product of her early life, and that is how I will play her. Your background should be the foundation of your character, and if someone asks why your character did something, you should be able to point to your Background and tell them, based on that, why she acted as she did. 

If I offended anyone, I apologise. I only try to help a bit, although that help may come in the form of a comment such as this.