alicorns are of a royal descent they are half pegises half unicorn and half heart pony they hold strength agility and magic
one of my creatures that I become is a aliicorn the other is a celestial god for a short time hoping to extent the time but very low
anyway alicorns hold some the stongest magic but sirens the wyverin king and many other creactures hold diferent types of magic.
You can not shapeshift into anything physically. Magic cannot change you from a human or alter you physically in any way (ex. no wings, no shapeshifting, no turning into something that isn't human, etc.)
ACTUALY the my little pony show is based on greek mythology you oviusly whouldent understand it if you don't reaserch it plus I use to not even like the show and I knew nothing about it until imet what my dream said iwhould
Surmising Greek lore as a singular body of literature is a stretch in and of itself because the sources would at times vary between each region it came from (really, that's the case for a lot of religions). Could you point to a source you say inspires MLP?
If you'd like to style your path, belief, and practices with My Little Pony, that is entirely up to you. However, few others do (and none that I've heard of) and thus would not be able to relate using its terms. Given that there isn't much other context provided in your statements on what your beliefs and practices are, there's not much to go off of until you more clearly state your intentions (again reiterating the importance of relatable terminology).