https://bulbanews.bulbagarden.net/wiki/Ash_hat_Pikachu_distribution_announced_for_American,_PAL_region_games
We'll soon be getting a code that can be put into Pokémon Sun and Moon to get Ash's Pikachu. This giveaway has a twist, however- the code will only work once, but depending on when you use it, Pikachu will be wearing one of six different hats, mirroring the ones worn by Ash in different seasons of the show. Each hat also confers a different moveset on the received Pikachu, but since we don't yet know what those moves are, answer this poll based purely on millinery.
The shattered stage is set and there's a role you must fulfil