Hey uhh I'm new in the Fandom and a friend of mine said I was a Maid of Heart and I wanted to ask for my powers? Like, what can I do once I ascended.

I’ve touched upon the Maid of Heart a lot, actually! The first post with the general description of the powers was over here. But beyond that, I’d say the Maid of Heart is one of the Classpects I’ve talked the most about. The general gist of it is improving Feelings and creating Feelings with people or between people, creating Souls likely as creating some sort of new being or healing one’s spirit in some way, and potentially, being made of multiple Souls within one body themselves.