It requires mastering fundamental principles, sensible design choices, simplifying when necessary, and above all else, having an enjoyable experience
[14] Discard Trainer cards, except for Stadiums, right after you play them
Paying 2 life to have them come in untapped helps you to stay on curve, and in decks like Death's Shadow, that life loss is actually a bonus
For example, the highly sought-after Alternate Art Rayquaza card from 2021's Evolving Skies expansion can be bought for $130 without being graded, while the same exact card has sold for as high as $500 after being graded a 10 by PSA
Worst comes to worst, we can also use this to have Blastoise ex retreat in exchange for our alternate Pokemon or a Fossil Card and prevent our opponent from taking two Prize Points