It will feature a Shiny Rayquaza that any player can challenge in Five-star Tera Raids, similar to previous Legendary Pokémon events with Palkia and Dialga—though this is the first Tera Raid to ...

All that said, if you’re OK with grinding and you like rare shiny Pokémon, then yes, the “Glimmers of Gratitude” is worthwhile. Rewards: 10 Dialga Candy, 10 Palkia Candy, 10 Giratina Candy ...