I think it's the typical chinese clichee: big tokenbuyer. If you have enough tokens, you can push your player up to the sky... all you need are endless restpacks.
Be careful: you are seing him through the association filter. He has 7 star-players AT HIS LEVEL, which would be 4 at yours. I also have up to 8 7 star-players each season and I do not buy a single token (no need to mention spending 30 euros !).
I'm at season 65 and have never bought a single token, still have a full 6* squad. Just give it a little time and u will success too