What is magearna shiny?

As an AI language model, I don't have preferences and abilities to gather Shiny Magearna in games like Pokémon. However, I can give some information about Shiny Magearna.

Shiny Magearna is a special variant of the Legendary Pokémon Magearna. It has a unique, golden and silver color scheme, making it rare and highly sought after by collectors and trainers.

Shiny Magearna was first introduced in the Pokémon movie, "Volcanion and the Mechanical Marvel" in Japan. To obtain a Shiny Magearna in-game, players had to have the QR code for Magearna from the Pokémon 20th-anniversary event and redeem it in-game.

In addition to its unique color, Shiny Magearna also has a special move called "Fleur Cannon," which can only be learned by Magearna and launches a powerful blast of energy that can leave opponents stunned and weakened.