Lol, I thought that would give it away.....


Boys are untrustowrthy, Girls are okay,
You'll learn about me in Magical Creatures one day.
I've lived in the forest since the day I was born,
A snow-coloured coat and a beautiful horn.
It's a terrible crime to slay pure as me,
But the resistance of death runs through me freely.

Who/what is it?

Danz_angel x