This guide will let you know how to get AZURE FLUTE in Pokemon Brilliant Diamond And Shining Pearl (ARCEUS EVENT).
After you complete and obtain Arceus, you have to put up BBSP and head back to Twinleaf town. When you reach there, you will get a special present “dessert flute” in this house.
Now you’ll need to make your way up and there will be a little poke ball in your room. You’ll get the flute there, it is the flute that you can use to catch Arceus. So once you obtain the flute, you have to head to Hearthome city and go towards mount Coronet.
When you reach there, you need to make your way up to the spear pillar and the game UI will tell you to use the Azure flute.
There’s going to be a little small sequence of the flute being played. After that, a staircase will appear that allows you access to battle and catch Arceus.
Once you get through that, you can basically battle your way to catch Arceus. It is quite thought to catch Arceus, so you need to have a lot of ultra balls to catch Arceus. It’s going to be quite a long one unless you’re getting lucky.