There are special numbered commemorative cards, called Celebration Boxes, containing with rare cards and classic artwork
Are the four subcategories effective in providing a desired play space
While Advanced Training becomes available immediately after Basic Training, its optional, so many players might overlook it
The Dragon Tail archetype's main deck monsters all have the same secondary effect, as these cards can all set a Dragon Tail spell/trap card from the deck, which allows for consistent plays and interruption on the opponent's turn
To give some examples, I have plotted some of the most common deck archetypes onto the spectrum below
Your buddy Pokemon will find Candy every now and then and the app should notify you whenever it happens