so I was writing out my characters and story until I ran into a plot hole that I cant get around,
one of my characters its a unicorn that was born in cloudsdale and its the only one to be born in cloudsdale. and wants to learn magic just like her sister.
but that's the plot hole if shy berry is the first and only unicorn born in cloudsdale that means her big sister its not a unicorn. and cant use magic unless she's a alicorn. but
she's not from a royal family so that's out of the question. I am scratching my head on this one, any ideas on how to fix this plot hole?