Arcanus the Unicorn
Arcanus is a unicorn how lives just within the Everfree forest near Ponyville. He lives just within the edge. He occasionally journeys into town to buy food.
As a youth he was a student of the Gifted school in Canterlot but was expelled and disgraced when he was caught practising dark magic. He still tries to learn all he can and master it in his cabin in private. He occasionally sells his services to others.
The focus of his research changed however after the Tirek rampage. Being caught up in it Arcanus has been trying to understand the magic stealing spell to develop countermeasures. He also has a deep rooted desire for revenge for making him powerless.
His dislike for Celestia for disgracing him in the Gifted School is still high, but is now overshadowed by his hatred for Tirek.
If he could, he would have liked go prove himself an asset to Nightmare Moon if she still existed.
These days he explores the multiverse in human form. Still learning all he can to increase his power