Pokémon GO Mewtwo – Unlock 2nd Charge ATK – Legacy Shadow Ball – TRADE (Read Describe)
You need
Stardust cost
How to get GPS coordinates
https://www.alphr.com/find-gps-coordinates-android/
https://www.idownloadblog.com/2017/12/20/how-to-find-gps-coordinates-iphone/