Looking for a name and cutie mark for my pony villain

[Angelic Song 5]

I'm trying to create an OC villain, who is a unicorn and was once close friends with my OC and his family. He's inspired by Rasputin from Anastasia and practices dark magic, but I can't think of a name or a cutie mark for him.  

Edited May 17, 2021 by Angelic Song

[Warywings 19]

Mmm... a green flame on his flank? For a cutie mark. 
Oh and some name ideas: 
Ash
Magic Hooves
Bone
Rasp
Ben Hoofmagic
 

[Illiad Easle 2,968]

@Angelic Song

I think Rasp Poutine is a good name, maybe his parents were Canadian?

Marks are meant to represent their self actualization, or the moment they discovered for themselves who they are. I'd need more detail on him before I could recommend a good mark. But for my rendition of Rasputin I had their mark be a scroll stabbed with a dagger.

[Evil Pink One 12,954]

Rasp berryl..........