His name is Fractal, and he is a prince of the Antloscow Kingdom. Antloscow is a kingdom located in the snowy north, and is home to deer, reindeer, Stallideer, and Fillydeer. Stallideer are a mixture of stallion blood, and deer blood. Maredeer are a mixture of filly blood, and deer blood. These strange hybrids share features from both deer and horses, hence why some have manes, long tails, or both. Some have antlers, some lack antlers.
Only royalty possess wings and antlers. The feature of having both wings and antlers is unique to the Antloscow Royals.
Fractal is a cryokinetic, which means he can manipulate ice. This power was haphazard in his youth, but he has much more control over it now.