* It's used to attract the legendary Pokémon Latias and Latios. You need to play through the game with either Latias or Latios as your "Eon Pokémon," and then use the Red Flute to call them to the Southern Island, where you can finally battle them.
Here's how it works:
1. Finding the Red Flute: You can get it from Steven Stone after you defeat the Elite Four and become the Champion.
2. Traveling to the Southern Island: You can only access the Southern Island after you've defeated the Elite Four and spoken to Steven Stone.
3. Using the Red Flute: Once on the Southern Island, simply use the Red Flute in your bag. This will trigger a cutscene with Latias or Latios appearing.
Important Notes:
* It's not a guaranteed encounter: Using the Red Flute doesn't always mean you'll find Latias or Latios. You may need to try multiple times.
* It only attracts the Eon Pokémon that wasn't your starter. If you started with Latias, the Red Flute will attract Latios, and vice versa.
Hope this helps! Good luck catching your Eon Pokémon!