I bought ADP yesterday for 1.35 mil. Only played a couple games with him and he's great. My only question is he worth all those coins if I only have 200k for the rest of my team? Granted I've only played a couple games, but I don't notice a huge difference between ADP and SIF Hazard who is almost half his price.
Notable untradeables I own are OTW Pogba, OTW Kante, and OTW Higuain.