high seas booster box - Pack - Flesh & Blood TCG big game sea monsters High Seas - Booster Pack

This gives a focus to the deck where it can play lines similar to very powerful decks like OP05-041-sakazuki-374 or OP06-080-gecko-moria-parallel but with the addition of very strong green cards like OP04-031-donquixote-doflamingo, OP04-119-donquixote-rosinante (which is going up a lot in price, pay attention to that) and the new OP06-035-hody-jones

GX Tag Force Evolution promotional cards Super Rare French French Release Number Set French name Rarity 2007-12-07 GX05-FR002 Yu-Gi-Oh

While it isn't as valuable as some of the other cards featured on this list, it still goes for around $83.00 ungraded, which is pretty good, all things considered

Destiny Board Traveler promotional cards (TCG-SP)

Similarly, card types like planeswalkers are necessarily found across all colors

Aside from that, no artificial rarity difference between cards of the same nominal rarity are introduced