The new deck builder has been released and is currently available for Patreon members. This deck builder changes the UI layout for better streamlined view - specifically for mobile devices. Also has option to switch between text format and card gallery format.
I plan on integrating the current text based deck builder later and this new deck builder will eventually replace the old one completely.
Try out the new deck builder at https://thepitchzone.com/deckbuilderv2.