teamup booster box team up Pokemon TCG: Sun & Moon The cards are from the Rogerz brand Pokémon TCG: Sun & Moon-Team

(Source) Thats a one-of-a-kind item and a one-of-a-kind example, because the highest going price for one of the Venusaur cards according to the PSA website is $13,100, and that was only graded a PSA 9 (MINT)

Sometimes they even put them in Top Loaders too, and buy special Top Loader Binders

Pokmon TCG Live is the official tool created by The Pokmon Company International, where you can build your decks and battle other players around the world

Designed for both style and functionality, this playmat is perfect for dedicated gamers and anime enthusiasts alike

They're trash cards on their own and I have yet to see anyone else play with them, but they have an interesting interaction with one card in particular that is heavily played in Commander: Nearly every Commander deck that runs black will run Urborg, Tomb of Yawgmoth, either for mana fixing and/or for its synergy with Cabal Coffers