While they have the ability to add or Summon ANY archetype card, this happens in the End Phase, so applications are not particularly powerful most of the time
In a game that goes to full 3 matches, if both players spend a couple of minutes checking for prizes, thats easily over 10 minutes out of the general play time just to check for prizes
Decks in the game are built upon the principles of various colors (supposedly representing martial arts styles: Red - a more energy heavy attack style, Blue - a more defensive fighting style, Orange - tends to focus on allies, drills, and setups, and Black - which has a large amount of board manipulation), races (Saiyan - which is primarily a physical combat style and Namekian which focused on deck regeneration and manipulating the discard pile), or "Freestyle" cards, which represent no specific style, but can be interjected into a deck regardless of Tokui-Waza
I had been working on a list of potential four-color deck themes for years, so I felt like we had a good head start on building some decks