Look at the contents of the companion sets. Each one lists the stock number of the dies that are included. You can put those stock numbers into the search feature of Accuquilt and see exactly what you are getting. Their whole approach is that you can make 72 blocks with the cube and double it to make 72 more with the companion set added to the cube. So you could not make 144 different blocks without both. If you look at the contents of the companion set and it does what you want to do, it could work for you.