Also, depending on your build, 1-3 copies of Buster Blader, the Destruction Swordsmaster (SR), which is actually preferred over the original Buster Blader due to its disruptive effect plus the fact that it counts as a "Destruction Sword" card for the effect of Buster Whelp and Karma of the Destruction Swordsman.
Yeah, new Buster Blader's very much a 1-of, especially without any reliable way to get it out of your hand beyond Buster Whelp's other effect. Regular Buster Blader is better for the most part. (If only Emblem of Dragon Destroyer was a Destruction Sword card, then you could go without the new Buster Blader altogether.)
all decks can be built with gems, even blue eyes... how do you say it's p2w?. I think you are mistaking duel links with some kind of expensive RPG sort of