Question, are we just talking about fan made personas? Or what?

No, YourFriendlyAkira, this is about the in-game personas in Persona 5 (including dlcs) that has certain skills that you add, For example, my recent persona build, Izanagi Picaro, has these skills: Cross slash Vorpal blade Ali dance Apt pupil Drain wind Drain bless Arms master Victory cry You can also talk about the armours, weapons and accessories that make your persona stronger.

Ooooooh. I use an arahabaki that i put Megido on, normal Arahabaki skills otherwise