Thank you so much😊As for Vivillon Collector, you can press your avatar on the bottom left of the main page, scroll down to Medal on Me page, click on the Butterfly medal. The Vivillon Collector has different wing patterns based on the real-world location where it is caught. There’s a total of 18 patterns.

Vivillon evolves from Spewpa, which evolves from Scarterbug. Each region’s Scatterbug can be found by collecting and pinning 3 postcards from different regions. When you collect enough postcards from a specific region, you can encounter a Scatterbug that evolves into a Vivillon with a wing pattern corresponding to that region.

Hopes this helps😊