Tools
Method 1: Use CaptureSight
- Start your game.
- Press the Home button and open CaptureSight.
- Look at the Active Den List and note the currently active Den Ids.
- Go back to the game and save in front of your desired den.
- Use your wishing piece on the den.
- Press the Home button as fast as possible, before the game finishes saving.
- Load CaptureSight and go to the Active Den List.
- Find the new Den Id in the list.
- Close and reopen the game so it doesn't think the wishing piece was used.
Method 2: Use the PKHeX Raid Plugin
- Use CFW or RCM to get your save file.
- Open the "main" file with PKHeX.
- Go to "Tools" => "Display Raids" to see all your raids.
- Search for a den you're interested in and get the den seed.
- Use RaidFinder with the den seed to find Pokémon you can RNG.
- If you don't find anything interesting, just re-use a wishing piece or check for natural dens.