The holographic foil layer is prone to scratching, and even cards that were placed in sleeves shortly after pulling can show light surface marks that impact grades
those unused in Forge, with the exception of silver bordered sets, since some cards from the are used, so I just have them whole)
Heres an optimized decklist for Koga: 2x Grimer 2x Muk 2x Koffing 2x Weezing 1x Ekans 1x Arbok 2x Koga 2x Professor's Research 2x Pokball 2x Sabrina 2x Potion
Choose one
Pokmon TCG: Detective Pikachu Case File $9.99 This set is the smallest of the bunch but still contains one promo card, one metallic coin, two Detective Pikachu booster packs, one standard booster pack, and one TCG Online code
While this would likely have been taken as a mere joke a year or so ago, times have very much changed