How do we know the abilities of Hisuian Pokémon?

Question

On this site is has abilities listed for Pokémon introduced in LoA such as Ursaluna. How do we know their abilities if they were introduced in a game with no abilities?

Comments

I will look into this further, but I believe that it may be Pokemaster or some other staff member editing the site based on the information coming from the Pokémon Company and/or Game Freak. Just a thought, so don't take this seriously. But again, I will look into this. But anyone who is reading this and wants to answer, feel free. I may take me a bit to find this answer myself.

Answer 1

Data for all Pokemon is present in game files for Legends: Arceus, even though only a fraction of them are available. This includes ability data for all Pokemon, including the new Pokemon, even though abilities are not in Legends: Arceus.

This data is datamined by people who know how to hack the game. This always happens for Pokemon games and it is where almost all Pokedex (and other) data comes from.

Context

Comments

Ah. That makes sense. Thanks