legendary duelist booster box Yugioh Soulburning Volcano 1st Edition or you can inflict damage to your opponent every time they Special Summon with the new Emperor of all “Volcanic” monsters Legendary Duelists Season 3 (Display)

There's no shortage of Pokmon cards with prices in the five-figure or higher range

Trainer cards that have the same name as a legal card but have effect text that's not era-accurate are legal and will be played as they were worded during this era, e.g

Sun & Moon - Mini Set Hidden Fates Hidden Fates is one of the only Sun and Moon era mini sets, bringing us many shiny cards

Chromatic Lantern is a great option to completely fix your mana, and Oblivion Stone is there when you need an emergency button

Ill probably still play them in only mono- or two-color decks

Individual bending abilities like Waterbend, Earthbend, Firebend, and Airbend can work outside the set, sure but Avatar Aang himself becomes much harder to build around effectively, especially if your goal is flipping him consistently