This knowledge helps you appreciate your pulls, make smarter trades, and choose trustworthy places to buy your packs
The Shiny Treasures card list is a window into the artistry and rarity that make Japanese Pokmon cards globally respected
When I planned out past, present and future, the timeshifted cards were not a given
"[Type]cycling [cost]" means "[Cost], Discard this card: Search your library for a [type] card, reveal it, put it into your hand, then shuffle." This type is usually a subtype (as in "Mountaincycling") but can be any card type, subtype, supertype, or combination thereof (as in "basic landcycling")
Being a goblin is nice, it adds a lot of potential tribal synergies to the card and might see it get some play in those roles
Buying only one is fine, but the pair is easier to explain later