Slowbro & Thievul Pokemon Card Reveals

For no reasons what so ever. Started with a few basic foems, and voilà. Sadly I didn't have an eraser at had. Here is the evolution :

 Slowbro is a mistery...It evolves with the help of Shellder, at least in the anime. But we don't know why this happens. And we don't even have an official form for the green Pokemon which Shellder