It is well worth consulting a PSA guide or finding a professional grader for appraisals if you have cards worth thousands of dollars
With that math in mind, if you want your deck to reliably make 4 land drops in the first 4 turns of the game, you should start with 36-39 lands and tweak from there
This is a sample image for illustration purposes
Follow the official Pokmon TCG and Pokmon Center social media channels (like X, formerly Twitter) and the news section of the Pokmon Center website
However, as a Tamer, you must know more about these techniques, such as against which types they are effective, which Digimon can utilize them, and most importantly, where to pick them up
Its removal both early and late, and its also excellent reach for closing out a game