so I'm not sure what any suggested so far but things I think would be great just for deck building itself.
Search Page:
1. Removing everything on the left side of the page besides the Search Box. Direct Entry Box and Intro to Our Deckbuilder box. (allows for more cards on the page)
2. Making it so that thumbnails pop up and you can hover over to see a bigger picture if you want.
3. Possibly moving the Navigation Bar to the bottom of the page. Again helping fit More on the page for search and building features
4. Right side of the page could be narrower so that you can make the left side bigger a bit, since the left side doesn't need all the images and is only text
honestly you guys are the closest thing to amazing for Deckbuilding. I love your interface and setup more than any other one I've used. These are just the few things I would love to see personally .
Keep up the good work, your stuff is awesome.