Each format has its own set of rules and card restrictions, which can greatly impact the deckbuilding process
For example, the Rayquaza Poncho-wearing Pikachu Special Box (released in 2016) now sells for US$3,000+, while individual cards like Mega Tokyos Pikachu can fetch US$5,000+ while other less expensive Pikachu wearing cards like SM-P 038 can fetch US$800+
During this period, I transitioned from using awful theme decks of PTCGO to using barely functional decks filled with Big Basic Pokmon and then to accidentally playing passable (but still horrible!) decks by the end of 2013
Did you notice that theres a literal Aristocrat in this set
Historically, Looker's Investigation () was a pretty common choice, but as 2010 has been played more, fewer and fewer decks (SP or otherwise) play Looker
What makes a huge difference in this Ashiok design is that its all themed across having cards in exile