Official art for Buck: Legacy card game, illustrated by Petirep, depicting a female Alicorn Acolyte, a playable race card which appears in the Buck: Legacy expansion set, ‘Golden Age’.
 
Alicorns in Buck: Legacy are rare, born by chance to an Earth Pony, Unicorn or Pegasus.  
When they are fully grown, they will assume a more powerful form than Earth, Unicorn or Pegasus combined.  
But until they are ready, they are considered an ‘acolyte’, learning to harness their incredible powers through vigorous training.  
When they overcome a great challenge, their true powers awaken, and their new form is called an ‘apostle’.
 
Acolyte - Male / Female
 
Apostle - Male / Female
 
Official Buck: Legacy Website  
Official Buck: Legacy Twitter  
Artist’s Twitter  
Developer’s Twitter