Generally, cards that have been released in Japan that are found to have inappropriate artwork will get changed before English releases, but even in English, there are quite a few infamous cards out there
They can be Normal Summoned, but also facilitate a Special Summoning method via Pendulum Summoning
Well go over some now
While Pokmon cards have different values based on rarity and condition, well walk you through how to find out how much theyre worth and where to sell them to make the most cash
On the private market side, we have apps like Whatnot with no publicly available sold data or again, the Facebook groups/marketplace, Instagram, etc
Subira, Tulzidi Caravanner offers another method of making your 2/2s unblockable as well as a source of card draw if Kaust isn't quite getting it done for you