Some are so powerful that they end up in many, many different decks
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
Lens App is useful when you want broad visual identification from any photo, including mixed card piles and non-card collectibles in the same session
For a Synchro Summon, you can substitute this card for any 1 "Synchron" Tuner
Its hard to hide your smugness at times, and not to let the competitive voice in your head make you mean