Collectible Card Game Headquarters

I decided I wanted to make my own version of Vintage Cube with alt arts (promos etc) that I like, but keep the same list besides one card I added. When I finally got done with it, i went to play with other people in tournament mode and none of the cards arts had changed..theyre all like the versions from the November 2016 vintage cube list.
Can anybody help me?

I believe the cubes default to the most recent, non-promo, non-supplemental-set images. Previously their had been complaints when the original art was not used, etc. It's not something I'm familiar with how to change, but maybe someone else can create an option for type of card art to use.