Ive been playing this game on and off for a long time and I find it wierd that not alot have been done to make the buying/selling progress alot smoother. Alot more search filters (as suggested) should be added. A big part of the game is about buying/selling new/old cards and creating new decks... All of this should work smootly and be user friendly.

Also I think that they are adding some sort of friends system right? Funny it took them so long though as it should be a very simple task.