While Ash Blossom & Joyous Spring is the most prevalent of these cards, a few other cards in this group also occasionally see competitive play depending on the format
Overall, however, I didnt have a lot of trouble learning the effects of new cards
Netdecking Lastly, theres the topic of "netdecking," and the controversy that can come with it
for instance, the Bello, Bard of the Brambles deck takes its raccoon leader and spins out an entire "one person's trash is another person's treasure" story through its card selection and archetype
You desperately need that Kirlia and you have some spare Ralts/Gardevoir or some other Psychic Pokmon that you wont really need
One method involves putting a spindown disc inside the card, with a window somewhere on the card to set your life total