To the right of the deck names in the lefthand column, I think it could be helpful to list the mana symbols of the colors that deck represents (similar to how they are listed at the top of the page once you click into a deck). I've often found myself with a particular card I want to find a place for somewhere, but without a specific idea for which deck. Being able to quickly identify the few decks it might qualify for via mana symbols would help save time.