Sure, there are investor bros out there making videos about what sets and products to target, and other channels that review upward and downward trends of single Pokemon cards, but none of these creators are consolidating all methods of making money from Pokemon TCG into one post
How to spot fake Unlimited cards
I always suggest that you prioritize fun over worrying about buying expensive cards like these
If an opponent plays Plague Zombies (while you have The Gudgeon in play), attacks with a zombie, and then passes initiative, if you break all their zombies, it is too late for them to take back playing Plague Zombies, so your opponent must take the Plague Zombie damage to their face
It is bad for you in all the same ways Jitte is bad and doesn't really solve the problems that Jitte does solve
All three are probably familiar to players in some form, with Thrasios, Triton Hero and Vial Smasher the Fierce likely being the most iconic pair to come out of this product