Image imported from derpibooru 
Original Description:
 
Mystic Arcanum is the awkward son of Princess Twilight Sparkle and her knight, Rarity Belle. Mystic was born with a magical disease that stunted his growth magically, making it so that spell-casting is really hard for him. He’s also really sickly, and isn’t really allowed to go outside because he’s at terribly high risk of catching something that will kill him.
 
Mystic, despite being relatively sheltered, is actually pretty personable. He does have a hard time making friends, and has a lot of anxiety about being outside. Luckily, he has a great support system.
 
He spends most of his time doing art and creating worlds to play O&O in. Mystic is autistic and has a special interest in Ogres & Oubliettes (pony dungeons and dragons), so he loves to run campaigns and play in them with his friends.
 
Sometimes, he also gets small flashes of things before they happen, but… everyone has those, right?
 
––  
Name: Mystic Arcanum  
Nickname(s): Mystic  
Age: 20  
Gender/Pronouns: trans-stallion, he/they  
Species: unicorn  
Orientation: gay  
Talent: ????  
Relatives: Rarity (mom/sire), Twilight Sparkle (mom/dam), [more to come]  
Spouse: N/A  
Voice Claim: Adora