This approach is itself symptomatic of the overall power creep of the format, with average game lengths shortening
Like in the books and series, plots abound After a solid first edition, the more recent second edition of the game cut out the chaff and doubled down on what makes it worth picking up, and has continued to be supported with regular packs of cards and content since - though recent rumblings suggest the games long-running expansions may be coming to an end soon, so its definitely worth seeking them out before they require a Lannisters fortune to buy
Pokemon TCG Pocket lets you collect hundreds of different Pokemon cards, build them into decks, and battle NPCs and other players with them
People buy them for a few common reasons: testing a deck before spending real money casual Commander where everyone agrees proxies are fine protecting expensive originals by keeping the real cards at home building cubes or teaching decks without needing duplicates of staples Proxy King also makes it clear (on product pages) that these are unofficial proxies and not for use in Wizards-sanctioned events
You really have to study these cards, know the patterns of the texturing, and look at the quality of the holo as well as the overall printing of the card
