Boostrot
A 9 year old kid who didnt had the best childhood, Boostrot's father cursed him at a very early age, making Boost condemned to carry a beast inside him for all his life. Every time his heartbeat reached high levels, a transformation is triggered, making his body change into a new and evil form.

Once the transformation is complete, the monster would seach for every living form and kill it to be fed.

Boostrot is a light green earth pony with a dark green messed mane. His passion about music (Specially with the guitar), is the only thing that keeps his spirit up on his journey. He is always up to help somepony thanks to his kindness and loyalty.

His friend BlueSpark always tries to help him by searching a cure for his curse. He is a very intelligent filly, Maybe a bit too much for just a kid of the same age as Boostrot.

While BlueSpark its a light blue unicorn with a brown arranged mane. The spell casting and potion making knowledge can lead him to create awesome things! As long as its safe for everypony. His dream is to be the most recognized unicorn in all of equestria. And his seriousness and determination always leads him to his goals.

Currency Compass
Currency Compass is an ancient pony of the Crystal Empire who was born over 1000 years ago before it fell. Having lost her entire family to the same curse that killed Princess Amore, she was taken in by Princess Celestia and Princess Luna to be a student in the ways of friendship. She had experienced plenty of adventures all over Equestria, and her life was the best it could've been until the day Nightmare Moon was born. Having saved Celestia from a shadow blast cast by Luna by absorbing it with her body, she was cursed as a shadow, and forced to roam the Everfree Forest for centuries until she could remember who she was. The fateful day when a young colt happens upon her changes her life...

Currency is an adult crystal pony about the same age as Twilight Sparkle (despite her curse), with a lavender coat just like her's, and a smooth red mane similar but different from Fluttershy's.

Besides being capable of powerful magic enough to resist many foes, she also has a wisdom beyond her years thanks to her upbringing by the princesses and her centuries spent as a shadow, and can easily relate a tale or two to keep anyone entertained. She takes a liking to the drink "Ginger ale", likes classical music, and is a cartographer and collector of a wide assortment of trinkets and relics.

However, beneath her wise and friendly demeanor, she harbors deep secrets and remorse towards some aspects of her past, which continues to bite back at her when she is alone...