A fresh Mew from the Pokeball Plus to customise how you like or start a brand new game with. The Mew comes with 3 guaranteed max IVs. These are unlike the 6 IV ones you see which are not real (Shiny ones also). Only this Mew is able to be used in Let's Go. There is no other way to get Mew on a Let's Go game. I will reach out to set up trades some time after purchase.
eBay